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CATALOG 2016

Gooch & Housego generates, controls, amplifies, connects, and measures lasers and light sources. Our expertise enables customers to push the boundaries of commercial applications of photonics technology.

GOOCH & HOUSEGO 1

CONTENTS

ABOUT US 2

ACOUSTO-OPTICS 11

CRYSTAL OPTICS 27

ELECTRO-OPTICS 33

FIBER OPTICS 39

PRECISION OPTICS 51

INSTRUMENTATION 63

CONTACT US

Locations 68

Sales contacts 69

Distributors 70

INDEX

Products, capabilities and services 72

2 GOOCH & HOUSEGO

GLOBAL LEADERS IN PhOTONICS TEChNOLOGY

Gooch & Housego generates, controls, amplifies, connects, and measures lasers and light sources. Our expertise enables customers to push the boundaries of commercial applications of photonics technology.

Custom and Commercial Off-the-Shelf

Our products are at the heart of systems, whether custom or commercial off-the-shelf (COTS). We also provide complete optical system design, engineering, and volume manufacturing services.Many of our customers start with a COTS product for proof-of-concept or prototyping stages of development and migrate into a semi-custom or completely customized solution as they move into production.

Design, Prototyping Through to Volume Manufacturing

From the research and development of our own products, to helping our customers design, prototype, and scale-up, our engineers and technologists support customers at every step. With five facilities in the USA and three in the UK, we can often serve both ITAR or non-ITAR requests.All of our facilities are ISO9001 certified, with ISO18001 and ISO14001 certifications in process.

Systems Technology Group

In 2013 we established the Systems Technology Group (STG) with the specific purpose of designing, developing, and prototyping systems-level products. Our multi-disciplinary team, with expertise in mechanical, electronic, and software design and modeling, integrates these technologies with G&H’s expertise in photonics.

1948 1995 1999 2002 2007 2008 2011 2011 2013 2013 2016ACOUSTO AND PRECISION OPTICS

LIGhT MEASUREMENT INSTRUMENTATION

CRYSTAL AND ELECTRO-OPTICS

ACOUSTO-OPTICS FIBER OPTICS PRECISION OPTICS FIBER OPTICS ACOUSTO-OPTICS PRECISION OPTICS RESEARCh AND DEVELOPMENT

PhOTONIC SOLUTIONS

Founded in Ilminster, our core capabilities at the time centered on manufacturing scientific optical components and crystalline materials; skills that are still very much at the cornerstone of the current operation. In 1982 we diversified into fabrication of water cooled acousto-optic devices.

The acquisition of Optronic Laboratories (OLI) allowed us to add the manufacture of optical radiation instrumentation products to our portfolio. Today we work with customers from all sectors in the provision of light measurement solutions.

Cleveland Crystals Inc. became part of G&H, adding a world class crystal growth facility. At the Cleveland site, in addition to growing crystals, we develop crystal optics and electro-optic devices for industrial, medical and scientific laser systems.

NEOS Technologies was one of the first to design and make acousto-optic devices for commercial use, New expertise in conduction-cooled and driver technology, broadened the range of applications for which we could supply acousto-optically controlled devices. In 2014 manufacturing was relocated to Palo Alto and Ilminster.

SIFAM Fiber Optics had worldwide renown in the design and manufacture of high reliability modular and passive components to the undersea telecoms, aerospace & defense and life science sectors. This acquisition allowed our diversification into a new area of photonics.

General Optics brought a unique capability in superpolished mirrors for scientific research and avionic and space applications.

EM4’s expertise as a manufacturer of active fiber optic components and subsystems and provider of photonic packaging services, added to our fiber optic capabilities. G&H now had a North American base for the supply of fiber optic solutions for performance in the harshest of environments.

Crystal Technology Inc, was a pioneer in the development of acousto-optic technology. Their considerable experience enabled us to expand the range of acousto-optic devices we could provide to customers in a variety of markets, notably in the area of crystal-based devices.

The acquisition of Spanoptic Ltd. added the manufacture of aspheric optics and infrared coating to our range of precision optic capabilities.

Constelex Technology Enablers Ltd. was an Athens-based designer and manufacturer of advanced photonic systems for satellite and space. This addition allowed us to couple our experience in fiber optic systems with specific expertise in space photonics to enable the next generation of satellite systems.

Through the acquisition of the best-in-breed companies in individual technology areas we have grown to become global leaders in photonics engineering.

G&H now comprises eight state-of-the-art manufacturing sites in the US and UK, with unparalleled capabilities in six core photonic technologies.

With sales offices in Germany, Japan, and a field-based sales team throughout the world, We are well prepared to serve our customers for another seventy years as they continue to push technical, environmental, and economic boundaries with photonics technology.

ILMINSTER, UK ORLANDO, FL CLEVELAND, OH MELBOURNE, FL TORQUAY, UK MOORPARK, CA BEDFORD, MA PALO ALTO, CA GLENROTHES, UK ATHENS, GREECE WORLDWIDE

ABOUT US

Customer deployments of our products encompass an exceptional range of applications:

• Avionic communications

• Battlefield range-finding and target designation

• Electronics manufacturing

• Laser surgery

• Machine vision

• Materials processing

• Nuclear fusion experimentation

• Oil and gas exploration

• Ophthalmic measurement

• Pipeline security

• Satellite-to-satellite communication

• Space exploration

• Undersea cabling

• Wind turbine calibration

GOOCH & HOUSEGO 3

IN

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CO EO

FO

AO PO

PO

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AO CO

Fremont

MoorparkClevelend

Bedford

Orlando

Glenrothes

Norderstedt

IlminsterHQ

Nagoya

TorquaySTG

1948 1995 1999 2002 2007 2008 2011 2011 2013 2013 2016ACOUSTO AND PRECISION OPTICS

LIGhT MEASUREMENT INSTRUMENTATION

CRYSTAL AND ELECTRO-OPTICS

ACOUSTO-OPTICS FIBER OPTICS PRECISION OPTICS FIBER OPTICS ACOUSTO-OPTICS PRECISION OPTICS RESEARCh AND DEVELOPMENT

PhOTONIC SOLUTIONS

Founded in Ilminster, our core capabilities at the time centered on manufacturing scientific optical components and crystalline materials; skills that are still very much at the cornerstone of the current operation. In 1982 we diversified into fabrication of water cooled acousto-optic devices.

The acquisition of Optronic Laboratories (OLI) allowed us to add the manufacture of optical radiation instrumentation products to our portfolio. Today we work with customers from all sectors in the provision of light measurement solutions.

Cleveland Crystals Inc. became part of G&H, adding a world class crystal growth facility. At the Cleveland site, in addition to growing crystals, we develop crystal optics and electro-optic devices for industrial, medical and scientific laser systems.

NEOS Technologies was one of the first to design and make acousto-optic devices for commercial use, New expertise in conduction-cooled and driver technology, broadened the range of applications for which we could supply acousto-optically controlled devices. In 2014 manufacturing was relocated to Palo Alto and Ilminster.

SIFAM Fiber Optics had worldwide renown in the design and manufacture of high reliability modular and passive components to the undersea telecoms, aerospace & defense and life science sectors. This acquisition allowed our diversification into a new area of photonics.

General Optics brought a unique capability in superpolished mirrors for scientific research and avionic and space applications.

EM4’s expertise as a manufacturer of active fiber optic components and subsystems and provider of photonic packaging services, added to our fiber optic capabilities. G&H now had a North American base for the supply of fiber optic solutions for performance in the harshest of environments.

Crystal Technology Inc, was a pioneer in the development of acousto-optic technology. Their considerable experience enabled us to expand the range of acousto-optic devices we could provide to customers in a variety of markets, notably in the area of crystal-based devices.

The acquisition of Spanoptic Ltd. added the manufacture of aspheric optics and infrared coating to our range of precision optic capabilities.

Constelex Technology Enablers Ltd. was an Athens-based designer and manufacturer of advanced photonic systems for satellite and space. This addition allowed us to couple our experience in fiber optic systems with specific expertise in space photonics to enable the next generation of satellite systems.

Through the acquisition of the best-in-breed companies in individual technology areas we have grown to become global leaders in photonics engineering.

G&H now comprises eight state-of-the-art manufacturing sites in the US and UK, with unparalleled capabilities in six core photonic technologies.

With sales offices in Germany, Japan, and a field-based sales team throughout the world, We are well prepared to serve our customers for another seventy years as they continue to push technical, environmental, and economic boundaries with photonics technology.

ILMINSTER, UK ORLANDO, FL CLEVELAND, OH MELBOURNE, FL TORQUAY, UK MOORPARK, CA BEDFORD, MA PALO ALTO, CA GLENROTHES, UK ATHENS, GREECE WORLDWIDE

ABOUT US

Experts in Demanding Applications and Rugged Environments

Our customers push the boundaries in the deployment of photonics technology – from space to the to the depths of the oceans.

To meet these extreme temperature, pressure, and vibrational requirements we have developed unique processes, systems, and designs to support applications where failure is simply not an option.

FACTS AND FIGURES

• Listed on London’s AIM Stock Exchange (GHH)

• 2015 revenues of £78.7M

• 700 employees

Sales offices

Manufacturing locations

4 GOOCH & HOUSEGO

SECTORS AND APPLICATIONS

Since 1948, Gooch & Housego has proven to be a global leader in designing and manufacturing a wide range of photonic devices. Our products are deployed across a uniquely broad range of applications, many in extreme temperature, pressure, and vibrational environments.

AEROSPACE & DEFENSE PHOTONICSDefense and avionics markets have been important drivers for our investment in operational quality and program management. As the defense sector focuses on real value and sustaining its wide array of platforms we see strong opportunities for photonics as a superior replacement for many existing technologies.

Short-Wave Infrared (SWIR) Imaging

Using our expertise in optical system design, in 2015 we launched a new range of fixed focal length SWIR lenses. A zoom version is planned for 2016. The lenses have been developed for defense and security applications. SWIR-wavelength optimized systems provide next generation capabilities for intelligence, surveillance and reconnaissance (ISR), covert laser illumination, and low-light / night vision use.

Target Designation and Range-Finding used on Land-Based and Airborne Systems

Precision optic components and sub-assemblies, as well as electro-optic and acousto-optic devices, are used in pulsed infrared lasers for target designation and range-finding. The majority of our customers are US and European defense contractors.

Countermeasures for Ground Based Systems and Airborne Platforms

Fiber optic, acousto-optic, and nonlinear crystal products are used in customer specific countermeasure applications, in both ground based systems and airborne platforms.

ABOUT US

Photo courtesy of SSTL

Photo courtesy of SSTL

GOOCH & HOUSEGO 5

SPACE PHOTONICSWe have a proven track record in the design and development of space hardware for European Space Agency (ESA) and National Aeronautics and Space Administration (NASA) missions with components, modules and systems integrated within operational satellites and on board the International Space Station.

We work with major government agencies and contractors on ground-breaking scientific programs. In parallel, we transfer this technology and use our experience in design and manufacturing products for use in undersea or avionic systems, to develop and commercialize space-qualified components and sub-systems. We maintain a leading role in research and development programs in Europe, the USA and Asia, through multiple projects and contracts centered on optical inter- and intra-satellite communication links, feeding innovation and fueling the company roadmap on a new generation of product lines.

Satellite to Satellite Communications and On-Board Satellite Data Processing and Routing

Photonics plays a critical role in next generation communication and attitude control systems, enabling broadband internet satellite connectivity, high bit-rate satellite links, and facilitating high-speed communication between deep space probes exploring the solar system.

We supply space-qualified active fiber optic components such as DFB (distributed feedback) lasers and provide photonic packaging capabilities for a range of applications. Our Systems Technology Group (STG) is developing a range of amplifiers for satellite to satellite communications. These space-qualified amplifiers are of lower mass, consume less power, and offer superior performance to previous designs. These designs provide the power and performance to weight ratios necessary to enable the satellite communication of tomorrow.

G&H also works with several agencies on space exploration projects. We research, design, and engineer components for instrumentation, as well as manufacture complete measurement instrumentation.

We use the know-how gained from these projects to improve products for commercial applications.

ABOUT US

Photo courtesy of ESA

Photo courtesy of NASA

6 GOOCH & HOUSEGO

INDUSTRIALG&H expertise serves a number of industrial markets. We provide components, sub-systems, modules, and complete instrumentation.

Laser Material Processing

For material processing applications, we design and manufacture acousto-optic, electro-optic and fiber optic products for use in high-power or high-energy laser systems. Products for material processing include Q-switches, attenuators, beam deflectors, as well asfiber-coupled devices and metrology tools.

LED and Display Testing Applications

We provide test and measurement instrumentation and calibration standards used to manufacture products used in lighting, automotive, and consumer electronics.

Metrology

For laser-based, high-precision, non-contact measurement systems, we supply precision optics and acousto-optics products.

Semiconductor Lithography Test and Measurement

Global semiconductor equipment manufacturers rely on G&H precision optics and acousto-optics.

Sensing

For strain, temperature, and pressure sensing applications, we supply fiber optic and acousto-optic components and sub-assemblies. Manufacturers of these systems address diverse end-markets such as wind energy production, oil drilling, and gas refining.

ABOUT US

SWIR Machine Vision Inspection

Our lens assemblies are available in a range of fixed focal lengths for applications including agricultural moisture measurements, food production, forestry analysis, metal and glass production, photovoltaic manufacturing, and waste recycling.

Telecommunications

Designed and manufactured for rugged environmental conditions, our customers deploy these products in undersea networks and in space for satellite-to-satellite communications. Products are based upon fiber optic technologies

Courtesy of Fraunhofer ILT

GOOCH & HOUSEGO 7

LIFE SCIENCESG&H serves the life sciences markets with photonics engineering solutions from across the company’s technology portfolio.

Optical Coherence Tomography (OCT)

Widely used for ophthalmic imaging, OCT has proven invaluable in improving the diagnosis of glaucoma and macular degeneracy. G&H provides a complete family of fiber optic products ranging from discrete components through interferometers, spectrometers and other modules, to full OCT optical systems. We serve most of the world’s leading manufacturers of OCT retinal imaging systems. We partner with key customers to develop OCT systems for cancer detection, cardiological imaging, and new medical diagnostic applications.

Laser Surgery

G&H supplies critical optical components, including acousto-optic devices and fiber optic assemblies, to both laser system and surgical equipment manufacturers. Applications include cataract replacement, vision correction, prostate surgery, varicose vein treatment, and mole treatment in addition to tattoo removal, teeth whitening, freckle removal, and wrinkle reduction. We are helping develop new fiber-delivered laser products that will enable less invasive surgical techniques.

Biomedical Microscopy

Laser-based techniques such as multi-photon and super-resolution microscopy are enabling real time imaging of subcellular processes and revolutionizing our understanding of cellular biology. G&H supplies optical components and subassemblies for these and other applications to both laser system and microscope manufacturers. Our acousto-optic tunable filters are used in confocal microscopes to control multiple laser sources. We are developing systems for new wavelengths to enhance deep brain imaging and early cancer detection.

SCIENTIFIC RESEARCHG&H works with some of most prestigious Big Science projects in the world.

We are a primary supplier of many critical optical components such as very large frequency conversion crystals used in the world’s most powerful laser system at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory. We supply similar products to the Commissariat à l’énergie atomique et aux énergies alternatives (CEA) and other inertial confinement fusion (ICF) programs around the world.

G&H also manufactures superpolished optics for leading edge synchrotron experiments around the world.

ABOUT US

Courtesy of LLNL

Courtesy of LLNL

Courtesy of Michelson Diagnostics

Courtesy of Michelson Diagnostics

8 GOOCH & HOUSEGO

IdentifyValue

Map Value

CreateFlow

PullSystems

PursuePerfection

ABOUT US

DRIVING CUSTOMER SATISFACTIONCustomers come to G&H because we have innovative products, the ability to offer technologically leading customized solutions, and expertise in photonics engineering and manufacturing; enabling them to innovate.

Customers stay with G&H because of our track record of delivering what they need, when they need it. G&H customers need shorter lead times, on-time delivery, and quick reaction to demand or design changes, as their customers’ requirements change.

In response, G&H is embarking upon a worldwide deployment of a continuous improvement strategy based on lean manufacturing principles.

Improving Value for the Customer

The five principles of lean thinking start and end with the customer.

Identify Value. Identify what truly provides value for the customer.

Map the Value Stream. Once it is understood what the customer values, the company can map the entire end-to-end process to deliver the product or service. Then non-value added activities can be identified for removal or simplification.

Create Flow. Removing waste (e.g. time in queue, product yields, non-value added processes) improves flow, reduces cycle times, and speeds production.

Pull Systems. Create systems to respond to customer pull. Eliminate systems that push product to customers.

Pursue Perfection. Continue to minimize actions which do not provide value for the customer.

Investing in a Lean Future

Lean manufacturing is a culture of “Everyone, Everyday” working to systematically drive customer satisfaction and operational excellence.

“Everyone, Everyday” means that all employees are engaged at all times in the improvement process, and in the design and deployment of tools and training. This results in improvement in flow, reduction in waste, and an increase in output. In this way we better meet, if not exceed, customer needs and expectations.

CONTINUOUS IMPROVEMENT

Precision is at the heart of everything we do. We strive to push the boundaries of product capability and manufacturing efficiency, passing on the benefits to our customers in terms of more cost-effective, capable, and durable assemblies and components. This requires innovation in our products and our processes. Continuous improvement is just one method used to evolve processes.

Everyone, EverydayGooch & Housego’s goal is to deliver expertise and excellence by every one of our staff, every day.

Eliminating Waste

D efects O verproduction W aiting N on value-added processing T ransportation I nventory excess M otion E mployee-related

GOOCH & HOUSEGO 9

FLOW

Levelling and CapacityContinuous Flow

Pull System Demand DrivenTakt Time

Frequent DeliveriesLine Concepts

WORKFORCE

Safety and ErgonomicsFlexibility and Motivation

Discipline to StandardsContinuous ImprovementDon’t judge, don’t blame!

Challenge

QUALITY

Quality Assuranceand ComplianceQuality Methods

Voice of CustomerSix Sigma

Mistake Proofing

6S

SAFETY QUALITY DELIVERY EMPLOYEE INVOLVEMENT COST

Customer Satisfaction Shareholder Satisfaction Employee Engagement Operational Excellence

BUSINESS SUCCESS

VisualManagement

EmployeeEmpowerment

Standards WasteElimination

ProblemSolving

Kaizen

ABOUT US

CONSTRUCTING A LEAN CULTUREEstablishing a Strong Foundation

The G&H lean culture is built upon a foundation of core principles and processes that we rely on to guide every deployment of lean manufacturing:

6S – Formerly known as 5S + safety, this fundamental methodology is quite simple: sort, straighten, shine, standardize, and sustain.

Visual management – Enables the teams to see what and how they are doing through visual control charts and other monitoring methods.

Employee empowerment – Enables our workforce to improve, innovate, and communicate.

Standards – Standardized work forms the baseline for continuous improvement.

Waste elimination – G&H focuses on eight deadly wastes: defects, overproduction, waiting, non-value added processing, transportation, inventory excess, motion, and employee-related.

Problem solving – G&H utilizes four approaches: plan, do, check, act (PDCA); 5-why analysis, fishbone diagrams, and simplified failure mode and effectsanalysis (FMEA).

Kaizen – Japanese for “improvement”. Typically Kaizen events are scheduled activities to re-organize, re-arrange, or re-tool production to improve flow.

Our Tools and Systems

Three pillars support G&H’s lean manufacturing initiative:

FlowThe first tool optimizes continuous flow within order management, manufacturing, and product delivery.

Our Empowered WorkforceAt the center of our company, and our success, is our workforce. We look to our workforce to initiate and sustain these improvements.

Designing in QualityA quality system which relies upon an inspection filter inherently creates waste. Parts which are made right the first time flow through the system directly to the customer.

10 GOOCH & HOUSEGO

WORKFORCE

ISO9001Currently certified to ISO9001:2008, G&H will migrate to ISO9001:2015.AS9100CAerospace Industry Quality Management system. G&H is gaining certification in facilities that serve the Aero and Space industriesOHSAS 45001International standard for Occupational Health & Safety. 45001 replaces 18001ISO 14001International standard for the environmental management of a business

ISO 9001

OHSAS45001

AS 9100C

ISO 14001

Currently certified toISO9001:2008,G&H will migrate toISO9001:2015

Aerospace IndustryQuality Management system.G&H is gaining certification in

facilities that serve the Aero and Space industries

International standardfor OccupationalHealth & Safety.45001 replaces 18001

International standardfor the environmental

management of abusiness

ISO 9001

OHSAS45001

AS 9100C

ISO 14001

Currently certified toISO9001:2008,

G&H will migrate toISO9001:2015

Aerospace IndustryQuality Management system. G&H is gaining certification infacilities that serve the Aero and Space industries

International standardfor OccupationalHealth & Safety.

45001 replaces 18001

International standard for the environmental management of abusiness

ISO 9001

OHSAS45001

AS 9100C

ISO 14001

Currently certified toISO9001:2008,G&H will migrate toISO9001:2015

Aerospace IndustryQuality Management system.G&H is gaining certification in

facilities that serve the Aero and Space industries

International standardfor OccupationalHealth & Safety.45001 replaces 18001

International standardfor the environmental

management of abusiness

DELIVERING ExCELLENCECombined with our vision of continuous improvement, the core principles and processes, systems and tools facilitate the operational excellence that delivers successful outcomes: customer satisfaction, shareholder satisfaction, and employee engagement.

Quality Management System for Product and Sites

G&H’s integration of quality management systems (QMS) across all of our UK and US manufacturing sites benefits our customers in many ways:

Improved consistency•Improved reliability•Improved traceability•Reduced risk•Reduction of waste and downstream costs•Improved sustainability•

Our quality management is based on adherence to four standards: ISO9001, AS9100C, OHSAS 45001 and ISO 14001

Compliance

Compliance with export regulations, material sources, and material regulations around the world is an important activity for G&H. Legislative changes, worldwide, have driven the recent expansion of this function.

Our compliance managers are focused on ensuring we provide the necessary documentation to support our customers. G&H conforms with the following regulations:

International Traffic in Arms Regulation (ITAR)•UK Export Control Organization (UK ECO)•US Export Administration Regulations (US EAR)•EU Restriction of Hazardous Substances (RoHS)•EU Registration, Evaluation, Authorization, and Restriction of Chemicals•(REACH)Conflict Minerals Compliance (Section 1502 of the US Dodd-Frank Act of•2010)

Our sales staff, together with country-specific compliance managers, are able to readily provide customers with compliance information or documentation.

WORK IN PROCESS, NOT AN END STATEContinuous improvement is just that, continuously improving our products and our processes: to improve flow, to remove waste, and to improve our products and services.

We look forward to updating our customers on our progress and to learn about how we can improve our systems to support our customers’ own lean initiatives.

The latest news about our lean manufacturing and QMS initiatives can be found at: goochandhousego.com/news-section

QUALITY MANAGEMENT

www.goochandhousego.com/news

www.goochandhousego.com/news

GOOCH & HOUSEGO 11

ACOUSTO-OPTICSGooch & housego has been a leader in acousto-optic device design and manufacturing since 1979, bringing together some of the best minds and technologies in the field to create a comprehensive line of high-quality products backed by premier service and reliability.

Technical and Manufacturing Capabilities 12

Products

Beam Deflectors 13Frequency Shifters 14Mode Lockers 15Modulators 16Fiber-QTM Fiber-Coupled Modulators 18Multi-Channel Modulators 20Q-Switches 21Pulse Pickers, Cavity Dumpers 22Tunable Filters 23RF Drivers 25Fiber-QTM RF Drivers 26

AO

12 GOOCH & HOUSEGO

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0 20 40 60 80 100 120 140 160

Dif

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RF drive power (relative) [%]

TEChNICAL AND MANUFACTURING CAPABILITIES

G&H acousto-optic components are characterized by unmatched optical power handling, optical performance delivered consistently over time and in volume, and designs optimized for a wide variety of applications.

This is a result of our control of every aspect of the design and fabrication of the entire acousto-optic product line, from growth of lithium niobate (LiNbO3) transducer material and tellurium dioxide (TeO2) crystals to in-house, to polishing, antireflection coating, fabrication and device testing.

Acousto-optic products covering wavelengths from the ultraviolet to the infrared are available in a wide range of optical materials, including TeO2 grown in-house to minimize distortion, scatter, and transmission loss.

Depending on the product type, we optimize transducer geometry to drive the acousto-optic crystal: longitudinal (compressional) acoustic mode or shear acoustic mode. Special attention is given to the transducer orientation to maximize electrical to acoustic conversion efficiency. Cold weld metal bonding and thermal expansion coefficient matching are used to provide a strong, reliable, low-loss attachment of the piezoelectric transducer to the interaction material, improving durability over broad operating temperature ranges.

We use technology such as apodized electrodes and phased array electrode designs to optimize the shaping of the acoustic field for each application, and wirebond the control electronics for a reliable, environmentally durable, low loss connection. Wire bonding also minimizes acoustic absorption at the transducer connection points.

Device packaging is designed to minimize thermally-induced wavefront distortion and beam wander during operation, and to extend product lifetime. Transducers are impedance matched to 50 Ω to allow for testing and use with industry standard RF equipment. RF drivers are specifically designed to drive our acousto-optic products at peak performance, with options customized to each application.

Decades of experience working with OEM partners around the world has given us the understanding to develop, design, and manufacture for extremes of temperatures, radiation, shock, and vibration. Graph showing diffraction efficiency (DE) and RF drive power for an AO modulator. The drive power and DE are normalised for peak efficiency (100% DE) at 100% drive power.

ACOUSTO-OPTICS

GOOCH & HOUSEGO 13

BEAM DEFLECTORSDesigned for high speed, solid state scanning applications

Acousto-optic beam deflectors (AOBD) offer precise angular control of an optical beam using RF drive frequency tuning. Up to two thousand spots can be resolved over an angular range of a few degrees for 1D and 2D scanning as well as beam deflection through a fixed angle. The scan speed can be as fast as a few microseconds.

G&H beam deflectors offer highly uniform diffraction efficiency across the full scan angle, with consistent power throughput for scanning applications such as material processing and digital imaging. We manufacture devices based on tellurium dioxide crystals grown in-house for visible and near-infrared (NIR) wavelength applications. For optimal transmission in the ultraviolet (UV) we offer fused silica and crystal quartz products. For broad bandwidth applications, we use a longitudinal mode approach with a phased array of piezoelectric elements within the transducer. We achieve high efficiency with slow shear deflection using parallel tangents off-axis interaction.

Contact us to discuss customized beam deflection solutions or multi-channel beam deflectors with high speed for volume OEM applications.

ApplicationsDigital imaging, heterodyne interferometry, laser cooling, laser marking, laser tweezers, material processing, micromachining, microscopy, on-line process control, optical inspection, photolithography, printing.

PRODUCT CODE WAVELENGTH SCAN ANGLE ACTIVE APERTURE OPERATING FREQUENCY OPTICAL MATERIAL

AOBD 4200-UV 266 nm 10.3 mrad 1.0x60.0 mm 135-265 MHz Fused silica

AOBD 4170 355 nm 4.9 mrad 7 mm 130-210 MHz Crystalline quartz

AOBD 4100-UV 364 nm 29.5 mrad 4.0x14.0 mm 75-125 MHz Tellurium dioxide

AOBD 4090-7 440-530 nm 44 mrad 8.5 mm 60-115 MHz Tellurium dioxide

AOBD 4200-VI 442-488 nm 29.5 mrad 4.8 mm 150-250 MHz Tellurium dioxide

AOBD 4100-VI 488 nm 39.5 mrad 4.0-14 mm 75-125 MHz Tellurium dioxide

AOBD 4080-13 635 nm 8.2 mrad 2 mm 76-84 MHz Tellurium dioxide

AOBD 4055-4 780-980 nm 44.3 mrad 3.5x14 mm 35-70 MHz Tellurium dioxide

AOBD 4210-IR 830 nm 27.6 mrad 2.0-6.0 mm 140-280 MHz Tellurium dioxide

AOBD 4090-6 1064 nm 56 mrad 2 mm 72.5-107.5 MHz Tellurium dioxide

AOBD 4075-IR 1065-1100 nm 8.1 mrad 2.5 mm 59-91 MHz Tellurium dioxide

AOBD 4070 9.4 µm 60 mrad 9 mm 50-90 MHz Germanium

ACOUSTO-OPTICS

14 GOOCH & HOUSEGO

FREQUENCY ShIFTERS Dependable shift with high extinction ratio

Like other acousto-optic devices, an acousto-optic frequency shifter (AOFS) Doppler-shifts the frequency of input light by an amount equal to the RF drive frequency, but is optimized specifically for this purpose. Typically our frequency shifters will use the anisotropic interaction of the slow shear mode in tellurium dioxide (TeO2). Applications such as interference-based optical techniques require a high extinction ratio between the diffracted and undiffracted beam; this can be achieved with a high-quality optical finish to minimize optical scatter.

We offer standard products with frequency shifts of 40-350 MHz, many of which can be operated in double-pass configurations. In addition we can design for custom frequency shifts where required. Frequency shifters are fabricated using high quality TeO2, grown and polished in-house, for lowest insertion loss and excellent power handling. Other acousto-optic materials are available and may be more appropriate for some applications.

TeO2 based frequency shifters are highly efficient acousto-optic devices, requiring very low drive power to achieve the desired frequency shift. Our designs consume minimal power (generally <100 mW power draw), often allowing us to package the driver with the AOFS for a more compact and power-efficient solution.

PRODUCT CODE WAVELENGTH OPERATINGFREQUENCY

ACTIVE APERTURE

INTEGRATED DRIVER

OPTICAL MATERIAL

I-M110-3C10BB-3-GH27 300-400 nm 110 MHz 3.0 mm No Crystal quartz

AOMO 3080-125 415-900 nm 80 MHz 2 mm No Tellurium dioxide

AOMO 3100-125 440-850 nm 100 MHz 1.5 mm No Tellurium dioxide

AOMO 3200-125 470-690 nm 200 MHz 1.5 mm No Tellurium dioxide

I-FS040-1.5S2C-3-GH83 532 nm 40 MHz 1.5 mm No Tellurium dioxide

I-FS040-1.5S2C-1-GH66 532 nm 40 MHz 1.5 mm Yes Tellurium dioxide

I-FS080-3S2E-1-GH39 633 nm 80 MHz 3 mm Yes Tellurium dioxide

I-FS080-3S2E-3-LG5 633 nm 80 MHz 3 mm No Tellurium dioxide

I-FS040-2S2E-1-GH66 630-690 nm 40 MHz 2 mm Yes Tellurium dioxide

I-FS040-2S2E-3-OL3 630-690 nm 40 MHz 2 mm No Tellurium dioxide

AOFS 4040-191 633-1064 nm 40 MHz 2x6 mm No Tellurium dioxide

I-FS080-2S2G-3-LV1 1064 nm 80 MHz 2 mm No Tellurium dioxide

I-FS040-2S2J-3-GH53 1550 nm 40 MHz 2 mm No Tellurium dioxide

I-M040-2C8J-3-GH84 1550 nm 40 MHz 2 mm No AMTIR

I-M040-2C8B1-3-GH84 1900-2100 nm 40 MHz 2 mm No AMTIR

ACOUSTO-OPTICS

ApplicationsInterferometry, laser cooling, laser Doppler velocimetry, laser Doppler vibrometry (LDV), optical heterodyne detection.

GOOCH & HOUSEGO 15

MODE LOCkERSFor high power, high-Q mode locked ultrafast laser pulses

An acousto-optic mode locker (AOML) modulates the loss within a laser cavity at its resonant frequency, effectively “locking” the phase of the longitudinal modes to generate very narrow laser pulses of high intensity.

G&H standing wave mode lockers yield near-theoretical mode locked laser pulse widths, with industry-leading transmission performance. Available in antireflection (AR) coated and Brewster angle options, they can also be customized for demanding one-off scientific and OEM applications.

We combine extensive AO device design experience with strict manufacturing controls to deliver high-Q (very low loss) mode lockers with minimal extraneous modes, achieving picosecond and femtosecond length pulses at repetition rates of up to 200 MHz. To ensure high quality and reliability lockers use high quality fused silica, polished and fabricated in-house. Greater than 99% transmission at 1064 nm is achieved with a durable in-house antireflection V-coat. Transmission over a broader range of wavelengths (700-1100 nm) can be achieved using windows cut to the Brewster angle. Low scatter and tight quality controls ensure that every mode locker is capable of handling high peak laser power over the long term without damage.

RF driver selection impacts mode locking system performance, as active temperature control of the acoustic resonator can assist in controlling resonant frequency such that resonance at the precise frequency of the driver’s oscillator can be maintained. G&H can assist in choosing the right driver for your application, advising on how performance of each RF driver will influence mode locking efficiency and pulse width.

From custom wavelengths to high repetition rates, we offer a wide range of standard and custom options for high performance, high-reliability mode lockers to achieve the shortest, most intense pulses possible.

PRODUCT CODE WAVELENGTH OPERATINGFREQUENCY

ACTIVE APERTURE

WINDOW TYPE OPTICAL MATERIAL

I-ML041-3C4G-3-GH101 1064 nm 41 MHz 3 mm AR coated Fused silica

I-ML080-3C4G-3-GH101 1064 nm 80 MHz 3 mm AR coated Fused silica

I-ML041-4.5C4R4-3-GH102 700-1100 nm 41 MHz 4.5 mm Brewster Fused silica

I-ML080-4.5C4R4-3-GH102 700-1100 nm 80 MHz 4.5 mm Brewster Fused silica

ACOUSTO-OPTICS

ApplicationsFemtosecond micromachining, fs/ps lasers (Nd:YAG, Nd:YLF, Ti:Sapphire, Argon ion), LIDAR, mode locking, multiphoton microscopy, nonlinear optics, optical data storage, optical heterodyne detection for spectroscopy, telecommunications.

16 GOOCH & HOUSEGO

MODULATORSSingle frequency devices allowing intensity modulation of collimated light

Acousto-optic modulators (AOM) allow the intensity of light to be controlled and modulated at rates that far exceed mechanical shutters. AOMs can be used like a shutter (cycling light on and off at a set frequency), or as a variable attenuator (controlling the intensity of transmitted light dynamically). The laser modulation is effected by means of RF interference induced sound waves in an acousto-optic crystal.

G&H acousto-optic modulators are optimized for low scatter and high laser damage threshold, and can be matched to the rise time, modulation rate, beam diameter, and power handling needs of each application. Rise time is proportional to the time required for the acoustic wave to traverse the optical beam and for this reason is influenced by the beam diameter within the AOM.

We offer very fast modulators with modulation frequencies up to ~80 MHz and rise time as low as 4 ns, requiring the input beam to be very tightly focused. Lower frequency modulators do not have this constraint, and can accept larger input beams. Their rise time is usually specified relative to the input beam diameter, in ns/mm.

Our modulators typically achieve extinction ratios of >50 dB, usually with a deflected beam throughput of 85-90%. For applications such as intensity leveling where a lower contrast ratio of ~10 dB is acceptable, we offer modulators with > 99% light throughput.

The products listed below illustrate a range of typical G&H AOM specifications. Our product managers and application engineers routinely work with customers, applying our expertise to customize products to meet the demands of their specific applications.

ApplicationsFiber amplifier noise measurements, fiber transmission testing, heterodyne interferometry, intensity levelling, intensity modulation, laser cooling, laser Doppler velocimetry, laser Doppler vibrometry (LDV), laser linewidth measurements, LIDAR, marking, material processing, micromachining, printing, pulse picking.

PRODUCT CODE WAVELENGTH RISE/FALL TIME

ACTIVE APERTURE

OPERATINGFREQUENCY

OPTICAL MATERIAL

I-M110-4C19R19-3-GH93 193-266 nm 110 ns/mm 4 mm 110 MHz ArF grade fused silica

AOMO 3200-1220 257 nm 113 ns/mm 0.25 mm 200 MHz Crystalline quartz

I-M110-3C10BB-3-GH27 300-400 nm 113 ns/mm 3 mm 110 MHz Crystalline quartz

I-M110-3C10T-3-GH72 355 nm 113 ns/mm 3 mm 110 MHz Crystalline quartz

I-M80-6.5C10T-4-GH60 355 nm 113 ns/mm 6.5 mm 80 MHz Crystalline quartz

I-M110-2C10B6-3-GH26 400-540 nm 113 ns/mm 2 mm 110 MHz Crystalline quartz

ACOUSTO-OPTICS

GOOCH & HOUSEGO 17

PRODUCT CODE WAVELENGTH RISE/FALL TIME

ACTIVE APERTURE

OPERATINGFREQUENCY

OPTICAL MATERIAL

AOMO 3200-121 442-488 nm 153 ns/mm 0.32 mm 200 MHz Tellurium dioxide



AOMO/AOFS 3080-125 442-633 nm 153 ns/mm 2 mm 80 MHz Tellurium dioxide

AOMO/AOFS 3100-125 440-850 nm 153 ns/mm 1.5 mm 100 MHz Tellurium dioxide




AOMO 3080-120 440-850 nm 153 ns/mm 1 mm 80 MHz Tellurium dioxide


I-M080-2C10B11-4-GH95 700-1000 nm 113 ns/mm 2 mm 80 MHz Crystalline quartz


AOMO 3080-122 780-850 nm 153 ns/mm 1 mm 80 MHz Tellurium dioxide


I-M080-2C10G-4-AM3 1030-1064 nm 113 ns/mm 2 mm 80 MHz Crystalline quartz

I-M080-4C10G-4-GH60 1030-1064 nm 113 ns/mm 4 mm 80 MHz Crystalline quartz

I-M068-5C10G-U5-GH100 1030-1064 nm 113 ns/mm 5 mm 68 MHz Crystalline quartz


AOMO 3080-194 1060 nm 153 ns/mm 1.75 mm 80 MHz Tellurium dioxide


I-M040-2C8J-3-GH84 1550 nm 260 ns/mm 2 mm 40 MHz AMTIR

I-M041-3C2V5-4-IS8 2000 nm 153 ns/mm 3 mm 40.68 MHz Tellurium dioxide

I-M041-1.4C10V5-4-GH49 1900-2100 nm 113 ns/mm 1.4 mm 40.68 MHz Crystalline quartz

I-M040-2C8B1-3-GH84 1900-2100 nm 260 ns/mm 2 mm 40 MHz AMTIR

I-M050-10C11V49-P5-GH77 5.5 µm 120 ns/mm 7.0, 9.6 mm 50 MHz Germanium

I-M050-10C11V41-P3-GH75 9.4 µm 120 ns/mm 9.6 mm 40/60 MHz Germanium

I-M041-xxC11xxx-P5-GH77 9.4/10.6 µm 120 ns/mm 7.0, 9.6 mm 40.68 MHz Germanium

ACOUSTO-OPTICS

18 GOOCH & HOUSEGO

FIBER-QTM FIBER-COUPLED MODULATORSReliable, high performance fiber-coupled modulators

Fiber-coupled acousto-optic modulators (FCAOM) are a compact, robust solution for fiber laser modulation and frequency shifting, allowing direct control of the timing, intensity, and temporal shape of the laser output. Direct integration of a fiber optic acousto-optic modulator into a fiber-based system allows the optical path to remain closed for better power handling and reliability, in addition to lower loss.

For visible and infrared wavelengths, our Fiber-QTM modulators offer high extinction ratio, low insertion loss, and excellent stability in both single-mode (SM) and polarization-maintaining (PM) formats at modulation frequencies up to 30 MHz. Built for reliability, these products feature rugged hermetic designs in compact, low-profile packages, ideal for ease of integration into all-fiber and OEM systems. We grow our own tellurium dioxide (TeO2) crystals in-house, polishing and performing all stages of fabrication to achieve low scatter and rigorous quality standards throughout the manufacturing process. This ensures consistently high reliability, high laser damage threshold and high optical performance.

In addition to our standard line of Fiber-QTM modulators, we customize, design, and manufacture in volume for OEM needs. Our technical support team works with customers to identify the best RF driver for the application, taking into consideration the type of modulation required (digital or analog) as well as any specific pulse shaping needs.

ACOUSTO-OPTICS

ApplicationsLIDAR, marking, material processing, medical laser systems, micromachining, microscopy, optical heterodyne interferometry, pulse picking, pulsed fiber laser amplifiers, Q-switching, security sensing, telecommunications.

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GOOCH & HOUSEGO 19

ACOUSTO-OPTICS

PRODUCT CODE WAVELENGTH FIBER RISE/FALL TIME OPERATINGFREQUENCY

PACKAGE

S200-0.4C2N-3-F2P 450, 532, 633, 780 nm PM 25 ns 200 MHz Non-hermetic

T-M150-0.5C2W-3-F2S 780 nm SM 30 ns 150 MHz Non-hermetic

T-M150-0.5C2W-3-F2P 780 nm PM 30 ns 150 MHz Non-hermetic

T-M200-0.1C2G-3-F2S 1060 nm SM 10 ns 200 MHz Hermetic

S-M150-0.4C2G-3-F2S 1060 nm SM 30 ns 150 MHz Non-hermetic

T-M150-0.4C2G-3-F2S 1060 nm SM 30 ns 150 MHz Hermetic

T-M260-0.1C2G-3-F2P 1060 nm PM 6 ns 260 MHz Hermetic



T-M200-0.1C2J-3-F2S 1550 nm SM 10 ns 200 MHz Hermetic





T-M200-0.1C2J-3-F2P 1550 nm PM 10 ns 200 MHz Hermetic





T-M080-0.3C2Z-3-F2S 2000 nm SM 100 ns 80 MHz Hermetic

T-M080-0.3C2Z-3-F2P 2000 nm PM 100 ns 80 MHz Hermetic

20 GOOCH & HOUSEGO

ACOUSTO-OPTICS

MULTI-ChANNEL MODULATORSIndependent control of multiple beams or a sheet of collimated light

Acousto-optic multi-channel modulators (AOMC) allow multiple beams to be modulated or deflected independently by integrating an array of transducers with a single acousto-optic crystal. Our proprietary optical and electrical designs minimize crosstalk, allowing concurrent operation of up to 48 channels for modulation, and up to 8 channels for beam deflection. Our AOMCs are known for their reliable operation and high performance.

Multi-channel modulators have parallel beams as input, each beam independently controlled by a different transducer to modulate its intensity. Multi-channel modulators are most often used for high speed applications like micromachining and direct-write lithography, as each beam can be modulated independently. These devices can also be used to increase throughput when writing large media by writing multiple beams at the same time. Our multi-channel modulators equal the performance available with our single channel modulators, and can be customized for large aperture applications as well as high speed, small aperture applications.

A multi-channel beam deflector however, generates multiple diffracted beams from a single input beam at specific locations by simultaneously applying multiple frequencies to a single transducer. Each individual channel is a deflector that can either scan the beam or produce multiple spots. This makes it possible to create a two-dimensional grid. For example, if a four channel beam deflector were configured so that each channel diffracted three spots, the result would be a 4x3 grid.

High laser damage threshold is achieved using low-scatter materials. These are inspected to rigorous quality standards. We grow our own tellurium dioxide and source high quality fused silica and crystalline quartz to ensure low insertion loss and excellent optical power handling.

G&H engineers apply their knowledge to design custom products for our customers, to meet their unique needs. The table shows a range of typical AOMC product specifications.

ApplicationsMarking, material processing, micromachining, printing.

PRODUCT CODE WAVELENGTH NUMBER OF CHANNELS

RISE/FALL TIME

ACTIVE APERTURE

OPERATINGFREQUENCY

OPTICAL MATERIAL

AOMC 220-4 350-365 nm 4 16 ns 0.24 mm 190-250 MHz Crystalline quartz

AOMC 125/24-3 350-365 nm 24 23 ns 0.5 mm 125 MHz Crystalline quartz

AOMC 3160-8 364 nm 8 21 ns 0.18 mm 160 MHz Fused silica

AOMC 300-5 413 nm 5 10 ns 0.2 mm 300 MHz Crystalline quartz

AOMC 220-5 413 nm 5 16 ns 0.24 mm 220 MHz Crystalline quartz

AOMC 3350-6 350-850 nm 6 30 ns 0.33 mm 350 MHz Tellurium dioxide

GOOCH & HOUSEGO 21

ACOUSTO-OPTICS

PULSE PICkERS, CAVITY DUMPERSRapid, synchronized pulse selection; internal or external to the laser cavity

Pulse pickers and cavity dumpers are high speed acousto-optic modulators which separate and divert a single laser pulse within a pulse train to a new optical path. A cavity dumper is used inside the cavity of a mode locked laser, while a pulse picker describes the same function when used externally. Both use high speed acousto-optic crystal and specialized design techniques to keep rise time to a minimum while operating at a low duty cycle to select individual laser pulses with speed and synchronization.

Tight focusing of the beam within the device is required to achieve the desired speed (typically <0.1 mm), resulting in very high input power density. Our rigorous manufacturing standards and high crystal quality minimize scatter and enable industry-leading optical power handling. Antireflection coatings minimize insertion loss.

By using a high RF carrier frequency and an optimized lens design, G&H pulse pickers and cavity dumpers provide large angular separation between the deflected and undeflected beams (up to 75 mrad). This makes it easy to separate the two beams in space and maintain a static contrast ratio of at least 500:1.

The choice of RF driver is particularly important to achieve accurate synchronization with the laser pulse train. Controls on the driver optimize the RF drive pulse shape and delay. The modulation signal is synchronized and optimized using a control loop to select the best time at which to pick off the pulse. Extinction ratio relative to adjacent and subsequent pulses can also be affected by the choice of driver, though >20 dB can be achieved.

G&H engineers apply their knowledge to design custom products for our customers, to meet their unique needs. The table below shows a range of typical pulse pickers and cavity dumpers product specifications.

ApplicationsCavity dumping, fs/ps lasers, pulse picking.

PRODUCT CODE WAVELENGTH RISE/FALL TIME ACTIVE APERTURE

OPERATINGFREQUENCY

OPTICAL MATERIAL

13389-BR AOCD/AOPP 350-850 nm 6 ns 60 µm 389 MHz Fused silica

17389-.93-FOA AOPP 700-1064 nm 7 ns 70 µm 389 MHz Tellurium dioxide

I-M080-2C10G-4-AM3 1030-1064 nm 113 ns/mm 2 mm 80 MHz Crystalline quartz

I-M080-4C10G-4-GH60 1030-1064 nm 113 ns/mm 4 mm 80 MHz Crystalline quartz

I-M150-0.5C10G-8-GH48 1064 nm 30 ns 0.5 mm 150 MHz Crystalline quartz

I-M110-1C10G-8-GH48 1064 nm 60 ns 1 mm 110 MHz Crystalline quartz

22 GOOCH & HOUSEGO

Q-SwITChESHigh power and low loss for lowering the cavity Q-factor and holding off lasing

An acousto-optic Q-switch (AOQS) works within a laser cavity to generate high intensity, short-pulse light by actively controlling the Q-factor (loss) of the cavity. Our products are rugged, reliable, and long-lasting, backed by millions of hours of service in the field. We offer low insertion loss, highly efficient Q-switches capable of handling very high peak power.

We have off- the-shelf solutions for polarized or unpolarized lasers, and can accommodate large lamp-pumped multi-mode laser beam diameters as well as small, compact diode-pumped beam diameters. Specialized designs meet unique needs such as ultra-high single pass loss (up to 96%), high switching speeds, and premium pulse-to-pulse stability.

Most AO Q-switch products utilize materials with high optical power handling such as fused silica or crystal quartz. In order to maintain high efficiency (i.e. loss modulation) with these materials, higher RF powers are necessary and therefore require adequate conduction or water cooling. All of our Q-switch products offer very low loss in the “off” state to maximize output intensity, and excellent transducer reliability to allow long-term use without maintenance.

We also offer a full line of RF drivers designed specifically for Q-switching, with rapid fall times, tight synchronization, operation in either fixed or variable mode, and advanced capabilities like first pulse suppression or multi-channel operation to drive multiple Q-switches within the same cavity.

PRODUCT CODE WAVELENGTH ACTIVE APERTURE

OPERATINGFREQUENCY

OPTICAL MATERIAL COOLING

I-QS080-1C10G-8-GH28 1030-1064 nm 1 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS080-1C10G-4-OS13 1030-1064 nm 1 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS080-1.2C10G-4-GH64 1030-1064 nm 1.2 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS080-0.5C10G-8-GH48 1064 nm 0.5 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS041-1.8C10G-4-GH21 1064 nm 1.8 mm 40.68 MHz Crystalline quartz Conduction-cooled

I-QS041-2.1C5G-4-GH88 1064 nm 2.1 mm 40.68 MHz SF10 flint glass Conduction-cooled

Industry Standard Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5, 8 mm

24, 27.12, 40.68, 68 MHz

Fused silica Water-cooled

Stallion Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5, 8 mm

24, 27.12, 40.68, 68 MHz

Fused silica Water-cooled

Super Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5 mm

24, 27.12 MHz Crystalline quartz Water-cooled

VHE Q-Switch 1064 nm 1.6, 2.5, 2, 3, 4 mm

68 MHz Crystalline quartz Water-cooled

I-QS080-1C10H-4-OS14 1319-1342 nm 1 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS041-1.5C10V23-4-HC1 1535 nm 1.5 mm 40.68 MHz Crystalline quartz Conduction-cooled

I-QS080-1C10J-8-GH28 1550 nm 1 mm 80 MHz Crystalline quartz Conduction-cooled

I-QS041-1.8C10R3-8-SO7 1800-2200 nm 1.8 mm 40.68 MHz Crystalline quartz Conduction-cooled

I-QS027-4C10R3-U5-IS6 1800-2200 nm 4 mm 27.12 MHz Crystalline quartz Water-cooled

I-QS041-2C10V5-4-HC1 1900-2100 nm 2 mm 40.68 MHz Crystalline quartz Conduction-cooled

I-QS027-3C10V5-U5-ST3 1900-2100 nm 3 mm 27.12 MHz Crystalline quartz Water-cooled

I-QS041-3C2P-4-SO11 2800-3000 nm 3 mm 40.68 MHz Tellurium dioxide Conduction-cooled

ACOUSTO-OPTICS

ApplicationsLaser marking, lithography, material processing, medical surgery, micromachining, Q-switching, rapid prototyping.

The products listed below illustrate a range of typical G&H AOQS specifications. Products can be customized to meet the demands of specific applications.

GOOCH & HOUSEGO 23

TUNABLE FILTERSPrecise, rapid wavelength selection and tuning

An acousto-optic tunable filter (AOTF) is a solid-state, electronically-addressable random-access optical pass-band filter. It may be used to rapidly and dynamically select a specific wavelength from a broadband or multi-line source. When specific matching conditions between the acoustic and optical beams are met, diffraction will occur. As a result it is possible to electronically control key filter parameters such as wavelength, modulation-depth and even bandwidth, thus providing rapid (typically µs), dynamic, random access optical filtering.

Resolution bandwidths down to <0.1% are available with exceptional performance and with aperture sizes up to 25 mm and beyond. We have developed and patented techniques to allow us to offer options such as large-aperture imaging filtering, sideband suppression, and transmission of multiple discrete wavelengths. G&H AOTFs are based on our in-house grown high quality TeO2 polished and fabricated to rigorous standards.

We offer a range of AOTFs to suit a variety of applications. For scanning an entire image in wavelength at speeds sufficient for real-time video rate spectral imaging, high optical throughput is required. For this purpose devices with large aperture and/or field of view are recommended. When narrow resolution is required and the light source is well collimated, a “quasi-collinear” AOTF may be more appropriate.

For best performance, we recommend a matched RF driver, including the latest digital frequency synthesizer (DFS) driver technology and random access wavelength control.

The table below shows a range of typical AOTF product specifications. G&H engineers apply their knowledge to design custom products for our customers, to meet their unique needs.

ApplicationsConfocal microscopy, fluorescence imaging, hyperspectral imaging, imaging spectroscopy, laser wavelength tuning, on-line process control, spectroscopy, wavelength selection.


RESOLUTION

AOTF 2837-31 351-430 nm 2.5 mm 1.0 nm

AOTF 3151-01 400-650nm 2.5 mm 2.5 nm

TF525-250-6-3-GH19A 400-650 nm 3 mm 5 nm

TF525-250-4-6-GH57A 400-700 nm 6 mm 4 nm

TF560-280-1-5-NT2 420-700 nm 5 mm 0.3 nm

AOTF 2838-01 450-670 nm 2.5 mm 1.3 nm

AOTF 2885-02 450-670 nm 2.5 mm 2 nm

AOTF 2885-04 450-670 nm 2.5 mm 4 nm

ACOUSTO-OPTICS

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24 GOOCH & HOUSEGO

ACOUSTO-OPTICS


RESOLUTION

TF625-350-2-11-BR1A 450-800 nm 11 mm 1.5 nm

TF850-500-1-3-PF3 600-1100 nm 3 mm 1.5 nm

TF850-500-10-6-GH58A 600-1100 nm 6 mm 10 nm

AOTF 2986-01 640-1100 nm 2.5 mm 5 nm

TF925-550-10-3-GH29A 650-1200 nm 3 mm 9 nm

TF950-500-1-2-GH96 700-1200 nm 2 mm 0.6 nm

TF950-500-0.3-3-GH98 700-1200 nm 3 mm 0.3 nm

TF950-500-1-5-NT2 700-1200 nm 5 mm 0.8 nm

TF1300-800-16-11-NO1A 900-1700 nm 11 mm 16 nm

TF2270-2560-5-5-GH65 990-3550 nm 5 mm 5 nm

AOTF 2996-01 1100-2000 nm 2.5 mm 12 nm

TF1650-1100-2-3-GH40 1100-2200 nm 3 mm 1.6 nm

TF1650-1100-9-3-GH30A 1100-2200 nm 3 mm 8 nm

TF1875-1250-10-6-GH59A 1250-2500 nm 6 mm 10 nm

TF1900-1100-6-11-GH54A 1300-2500 nm 11 mm 6 nm

TF1900-1100-6-25-GH87A 1350-2450 nm 25 mm 6 nm

TF2000-1000-2-6-GH78 1500-2500 nm 6 mm 1.2 nm

TF2250-1500-12-7-GH61A 1500-3000 nm 7 mm 12 nm

TF2900-2200-5-3-GH40 1800-4000 nm 3 mm 5 nm

TF3000-2000-3-7-GH78 2000-4000 nm 7 mm 2.6 nm

TF3300-2200-xxx 2200-4400 nm Up to 15 mm Varies

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GOOCH & HOUSEGO 25

RF DRIVERSStable, versatile electronic control options for acousto-optic devices

An RF driver generates a fixed or variable frequency signal supplied to the acousto-optic device’s transducer. This in turn uses the piezoelectric effect to very precisely convert the RF signal to an acoustic wave that propagates within the acousto-optic device’s crystal. The frequency and intensity of the applied signal will determine how much an optical beam is modulated, deflected, or tuned.

An acousto-optic device and its RF driver should be selected as a unit to optimize speed and stability for each application. Additional driver features include first pulse suppression, synchronization, pulse shaping, and multi-channel operation.

We offer a wide variety of stable high frequency drivers with analog and digital modulation capability. Voltage controlled oscillators (VCOs) vary the oscillation frequency via the input voltage, and are a cost-effective solution for applications with less stringent frequency stability and linearity requirements.

Direct digital synthesizer (DDS) drivers offer higher stability, with fast switching time and high resolution. They can create random waveforms from a single, fixed-frequency reference clock, and thus are ideal for pulse shaping and special functions. They also allow frequency to be varied on the order of a few hundred nanoseconds, and are inherently very linear. DDS drivers are software driven, and can be run from a user-friendly interface (a GUI), or controlled directly via computer driver commands. Our high-performance multi-frequency DDS drivers generate up to 8 channels of RF frequencies simultaneously.

PRODUCT CODE COMPATIBLE AO DEVICES OPERATING FREQUENCY RF POWER KEY FEATURES

64020-250-1ADMDFS-A Beam deflector, special AOM, tunable filter

20-250 MHz 1.0 W Variable frequency; module

64020-200-2ADMDFS-A Beam deflector, special AOM, tunable filter

20-200 MHz 2.0 W Variable frequency; module

97-02925-32 Beam deflector, tunable filter 20-160 MHz 0.4 W Single channel DDS; module

97-03926-12 Beam deflector, tunable filter 20-160 MHz 3.2 W 8 channel DDS; module

SD020-200-5UC-4x1 Tunable filter 20-200 MHz 5.0 W DDS module, single or multi-channel

A35xxx-S-1/50-p4k7u Fiber-QTM, modulator 40, 80, 110, 150, 200, 300 MHz

5.0 W Analog/digital; module

MHPxxx-YYADM-A1 Fiber-QTM, modulator 24-260 MHz 2-20 W Analog/digital; module

1xxxAF-xIN0-x.xHCR Fiber-QTM, modulator, frequency shifter

80-350 MHz 0.5-4.0 W Analog/digital; module

HP041-125ADG-A10 Modulator 40.68 MHz 125 W Analog/digital; module

HP040-060-150ADG-A10-2x Modulator 40/60 MHz 2x75 W Dual frequency; analog/digital; module

MQH0xx-YYDM-ZZZ Q-switch, modulator 24, 27.12, 40.68, 68, 80 MHz

25-100 W Analog/digital; module

MQH0xx-YYDM-ZZZ-2S Q-switch 24, 27.12, 40.68, 68, 80 MHz

25-50 W per channel

2 channel analog/digital; module

QC0xx-YYDC-ZZZ-AAV Q-switch, modulator 24, 27.12, 40.68, 68, 80, 110 MHz

2-24 W Analog/digital; module

ACOUSTO-OPTICS

ApplicationsAcousto-optic modulators, beam deflectors, cavity dumpers, fiber-coupled modulators, frequency shifters, mode lockers, multi-channel modulators, pulse pickers, Q-switches, tunable filters.

The products listed below illustrate a range of typical G&H AO device driver specifications. Products can be customized to meet the demands of specific applications.

26 GOOCH & HOUSEGO

FIBER-QTM RF DRIVERSSpecialized control for Fiber-Q™ acousto-optic modulators

Each Fiber-QTM acousto-optic modulator requires an RF driver to control the embedded acousto-optic crystal, as modulation of the beam depends upon the frequency and intensity of the applied RF signal.

The RF signal which generates the acousto-optic wave in the acousto-optic crystal can do so very precisely at a fixed or variable frequency, and is created using a transducer mated to the acousto-optic crystal and driven by the piezoelectric effect.

Analog, digital, and combined RF drivers are available for use with the Fiber-QTM series. All are designed for dependable stability and high frequency operation, with compatible options for the full line of visible and NIR Fiber-QTM products. The speed and stability of a modulator is limited by the stability and speed of the RF driver, and thus the two should be selected as a paired unit to optimize performance, features, and application-specific options.

The primary factors to consider when selecting an RF driver include the operating frequency, the required rise/fall time of the application, and whether analog or digital modulation is needed. RF power, duty cycle, stability, and variable vs fixed frequency are also relevant.

G&H drivers for the Fiber-QTM series of modulators are designed for constant RF power output, fast modulation, and with conductive cooling via the baseplate. When tuned together with the modulator, they offer stable, dependable modulation to enable all-fiber laser systems.

PRODUCT CODE OPERATINGFREQUENCY

RF POWER MODULATION

97-09210-18 80 MHz 3.0 W Analog

97-09210-19 80 MHz 3.0 W Digital

A35080 80 MHz 3.0 W Analog/digital


97-09210-14 150 MHz 2.5 W Analog

97-09210-15 150 MHz 2.5 W Digital


97-02910-04 200 MHz 2.5 W Analog

97-02910-01 200 MHz 2.5 W Digital


ApplicationsAcousto-optic modulators, cavity dumpers, fiber-coupled modulators, mode lockers, pulse pickers, Q-switches.

GOOCH & HOUSEGO 27

CRYSTAL OPTICSGooch & housego is a pioneer in crystal growth techniques and a supplier of special crystalline materials for use in high power applications. Many of our precision optic components are manufactured from our own in-house grown crystals, including achromats, harmonic generating optics, prisms, and waveplates.


Products

Lithium Niobate Wafers 29Nonlinear Optics 30Periodically-Poled Lithium Niobate 31

CO

28 GOOCH & HOUSEGO


G&H crystal growth capabilities extend over a significant number of materials; our crystals comprise the basis for many of G&H’s own products. Our experience growing lithium niobate (LiNbO3) dates back to 1967, when we produced the first commercially available material.

Since that time we have constantly refined the growth and material processing to be able to produce the highest quality LiNbO3, providing the most consistent performance of acousto-optic and electro-optic devices such as modulators, Q-switches, Pockels cells. We also offer LiNbO3 as wafers, AR coated Pockels cell crystals with electrodes, and as periodically poled (PPLN) harmonic generators.

Beginning with the raw chemicals, we grow, orient, fabricate, finish, coat, and mount ß-barium borate (BBO), cadmium sulfide (CdS), cadmium selenide (CdSe), potassium dihydrogen phosphate (KDP), and potassium dideuterium phosphate (KD*P) crystals in housings with apertures from 3 mm to larger than 300 mm. Additionally, we grow tellurium dioxide (TeO2) for our acousto-optic devices.

Proprietary crystal growth optimization software enables us to supply custom crystal solutions for your project. We routinely produce crystals as large as 43x43x1 cm for internal confinement fusion (ICF) applications, as well as crystals as small as a few mm in cross-section for microchip laser applications.

CRySTAL OPTICS

Laser manufacturers rely on G&H to provide the highest quality crystal optical components manufactured to specification. They benefit from our expertise with design recommendations to arrive at technically advanced, innovative, and cost effective solutions to meet the demanding requirements of modern laser systems and optical instrumentation.

G&H customers include manufacturers and research laboratories that require the highest quality components for cutting edge applications. Large KDP and KD*P crystal plates grown and finished by G&H are in use at National Ignition Facility (NIF) and The Commissariat à l’énergie atomique et aux énergies alternatives (CEA).

GOOCH & HOUSEGO 29

LIThIUM NIOBATE wAFERSHigh quality congruent and MgO doped wafers

Lithium niobate (LiNbO3 or LN) is used in electro-optics, acousto-optics, nonlinear optics and guided-wave optics due to its attractive fundamental properties. These properties include wide transparency range, high electro-optic and nonlinear optic coefficients, very high electro-mechanical coupling coefficients, and chemical and mechanical stability.

G&H offers x-axis and Z-axis orientation LN in congruent and 5.0 mol% magnesium doped compositions. We have refined our proprietary techniques for growth and processing to produce consistently high quality LN for one-off scientific and volume OEM applications.

We provide congruent lithium niobate wafers for infrared light applications, and magnesium-doped periodically-poled LN (MgO:PPLN) for improved resistance to photorefractive damage at visible wavelengths.

Our optical wafers undergo many stages of precision processing to ensure the highest quality is provided to the customer. Poling of the lithium niobate boules grown in-house aligns the ferroelectric domains along a single axis, after which the boule is shaped; slices are cut to within 6 minutes of the x- or z-axis with the assistance of x-ray orientation. A curved radius is ground on the outside edge of the wafer to reduce cracking and chipping, followed by lapping and chemical etching. Polishing of one or both sides brings the finish to within Ra < 0.2 nm, and to a front surface quality of 10-5.

We perform 100% visual inspection on finished wafers, and characterize stress and strain prior to packaging in a cleanroom environment.

PRODUCT CODE DIAMETER THICKNESS ORIENTATION SIDE 1 SIDE 2 OPTICAL MATERIAL

97-01514-10 100 mm 1.00 mm Z-axis 10-5 20-10 LN

97-01763-01 100 mm 1.00 mm x-axis 10-5 60-30 LN

97-01912-01 100 mm 1.00 mm x-axis 10-5 Ground LN

97-02641-01 125 mm 1.00 mm Z-axis 10-5 60-30 LN

97-02604-01 125 mm 1.00 mm x-axis 10-5 60-30 LN

97-03044-02 76.2 mm 1.00 mm Z-axis 10-5 20-10 MgO:LN

97-03044-01 76.2 mm 0.51 mm Z-axis 10-5 20-10 MgO:LN

97-00567-01 76.2 mm 1.00 mm Z-axis 10-5 Ground LN

97-00663-01 76.2 mm 1.00 mm x-axis Polished Ground LN

99-00629-01 76.2 mm 0.50 mm x-axis Polished Polished LN

99-00630-01 76.2 mm 1.00 mm x-axis Polished Polished LN

97-00567-01 76.2 mm 1.00 mm Z-axis 10-5 Ground LN

97-01183-01 76.2 mm 0.50 mm x-axis 10-5 Ground LN

99-00042-01 76.2 mm 0.51 mm Z-axis 10-5 60-30 LN

99-60011-01 76.2 mm 1.00 mm Z-axis 10-5 60-30 LN

CRySTAL OPTICS

ApplicationsIsolators, low pass filters, ophthalmic surgery systems, Pockels cells, Q-switching, range-finders, target designators, waveguides, Wollaston prisms.

30 GOOCH & HOUSEGO

NONLINEAR OPTICSCrystals for nonlinear frequency conversion, from DUV to FIR

Nonlinear optic (NLO) crystals are used for polarization control and frequency conversion applications. We offer a wide selection of crystals for use from the deep UV to the far IR. All are fabricated in-house using advanced orienting, sawing, grinding, and lapping technologies.

We offer ß-barium borate (BBO) for use in for Pockels cells and harmonic generators, cadmium selenide (CdSe) for infrared waveplates and MIR harmonic generation, and cadmium sulfide (CdS) for infrared waveplates. Our potassium di-hydrogen phosphate (KDP) and potassium dideuterium phosphate (KD*P) crystals are used in Pockels cells and electro-optical Q-switches, while LiNbO3and TeO2 are used in acousto-optic devices. LiNbO3 is also used to produce waveguides, low pass filters, isolators, and Wollaston prisms.

Proprietary software routines and unique crystal growth capabilities enable us to supply customized crystals for a variety of applications: KDP boules with masses greater than 635 kg, crystals with cross sections as large as 43 cm square for inertial confinement fusion (ICF) applications, and large single crystal CdS and CdSe crystals for IR waveplates.

Precision polishing techniques achieve large diameter or high aspect ratio optics with excellent transmitted wavefront characteristics. We offer special geometrical shapes with aspect ratios better than 100 to 1 including large diameter thin plates and smaller diameter plates as thin as 400 µm. Brewster-cut bars are also available for low-loss intra-cavity laser applications.

Vapor deposition and IBS coating systems provide AR coatings as needed. We have developed a proprietary SolGel AR coating process for crystal diameters ranging in size from 5 mm to over 300 mm.

Vacuum deposition processes can be used to apply metal electrodes to flat polished or fine-lapped surfaces as well as cylindrical surfaces.

Our fixtures and housings are designed to minimize mechanical stress and strain, backed by a machine shop providing tight tolerance, high quality manufacturing of standard and custom housings. In-house metrology includes transmission and reflection interferometry, as well as measurement of contrast ratio, insertion loss, uniformity of birefringence, and other important characteristics.

Our product managers and sales engineers routinely work with customers, applying our expertise to develop custom products to meet the demands of specific applications.

CRYSTAL HOLDER TYPE OUTER DIAMETER APERTURE THICKNESS

xH Series 25.3 mm 5x5, 6x8, 8x8, 10x10 mm 22.2, 24.7, 27.2 mm

xC Series 25.3 mm 4, 6, 8, 10, 12.7 mm 6.35 mm

xCL Series 25.3 mm 4, 6, 8, 10, 12.7 mm 12.7 mm

xTP Series 50.67-356 mm 30-300 mm Varies

CRySTAL OPTICS

ApplicationsBeam deflectors, harmonic generators, IR waveplates, isolators, low pass filters, modulators, Pockels cells, pulse pickers, Q-switches, waveguides, windows, Wollaston prisms.

GOOCH & HOUSEGO 31

PERIODICALLY-POLED LIThIUM NIOBATEHigh efficiency quasi phase-matching for OPO, SHG and DFG applications

Periodically-poled lithium niobate (PPLN) nonlinear crystals are efficient wavelength converters from the visible region to 5 µm. By using lithography to define the poling pattern, it can easily be customized to a wide range of applications.

Phase-matching over very long propagation lengths at infrared wavelengths is possible with our congruently grown undoped PPLN manufactured from highly uniform Z-axis wafers. Visible wavelengths are better served by Magnesium doped PPLN (MgO:PPLN), as the 5 mol% doping prevents photorefractive damage. Average powers of up to 1 W can be produced at 532 nm in our MgO:PPLN crystals without causing beam distortion.

To achieve optimal conversion efficiency, the interacting waves need to be phase-matched by choosing the proper poling period. Typical periods range from about 7 µm for second harmonic generation (SHG) producing 532 nm to around 30 µm for optical parametric oscillators (OPOs) pumped by Nd:YAG lasers. The poling is done in wafer form before the chip is cut and polished, allowing the configuration to be specifically tailored to each application. We can design fan-out gratings to allow continuous tuning as beam position is moved across the aperture, chips as long as 80 mm to maximize gain, and chips as wide as 40 mm to achieve fine tuning of the signal wavelength.

Patterns with multiple gratings along the beam direction enable multiple nonlinear interactions in the same crystal. This can be used to increase the quantum efficiency of OPOs or to generate various different wavelengths at once. Chirped gratings are used to widen the wavelength acceptance or to compensate for group velocity walk-off in ultra-short pulses.

PRODUCT CODE WAVELENGTH* ACTIVE APERTURE

OPTICALMATERIAL

PERIOD AR COATING

LENGTH

97-03038-xx 0.532 µm 0.75x0.5 mm MgO:PPLN 6.9-6.96 µm Yes 1, 3, 10 mm

97-03040-xx 0.532 µm 0.75x0.5 mm MgO:PPLN 6.9-6.96 µm No 1, 3, 10 mm

97-02384-xx 1.3-1.6 µm 1.3x1 mm PPLN 25.5-28.7 or 28.5-29.9 µm No 19, 50 mm

97-02182-xx 1.3-1.6 µm 1.3x0.5 mm PPLN 25.5-28.7 or 28.5-29.9 µm No 19, 50 mm

97-02383-xx 1.6-2.1 µm 1.3x1 mm PPLN 30.0-31.2 µm No 19, 50 mm

97-02256-xx 1.6-2.1 µm 1.3x0.5 mm PPLN 30.0-31.2 µm No 19, 50 mm

* Assumes a 1064 nm pump laser

CRySTAL OPTICS

Applications Chemical fingerprinting, compact laser displays, countermeasures, difference frequency generation (DFG), laser cooling, laser display, microscopy, range-finding, second harmonic generation (SHG), sensing, target illumination, telecommunications, wavelength conversion.

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Signal wavelength tuning with temperature for different QPM periods in a 1.064 µm pumped PPLN OPO

GOOCH & HOUSEGO 33

ELECTRO-OPTICSGooch & housego’s electro-optic and crystal growth facility was founded in 1973. we now offer a comprehensive range of electro-optic solutions for a diverse range of applications in the ultraviolet through infrared wavelengths. with over four decades of experience in device design and internal crystal growth capabilities, we are uniquely qualified to support Pockels cell requirements.


Products

Pockels Cells 35Pockels Cell Drivers 36Lithium Niobate Q-Switches 37

EO

34 GOOCH & HOUSEGO

Utilizing proprietary crystal growth, fabrication, and polishing techniques, we manufacture both longitudinal and transverse electrode configuration Pockels cells with clear aperture diameters ranging from 1.8 to 100 mm. Our unique KDP and KD*P crystal growth, Pockels cell design, and device manufacturing capacity allows us to support the needs of even the most demanding OEM or scientific laser system.

The Commissariat à l’énergie atomique et aux énergies alternatives (CEA) and National Ignition Facility (NIF) selected G&H as the primary supplier of large aperture Pockels cells for optical isolators in their high fluence lasers in their inertial confinement fusion programs. These laser systems are effectively the most powerful in existence and require extraordinarily low absorption KD*P.

For high-average power and high repetition rate applications, we provide BBO Pockels cells, the preferred alternative to KD*P. We offer CdTe devices for operation at longer wavelengths, which benefit from CdTe’s high electro-optic coefficient and non-hygroscopic nature. The use of oxide based crystals and water-cooled designs allow for increased average power handling capacity.


G&H offers an extensive range of electro-optic devices based on potassium dihydrogen phosphate (KDP), potassium dideuterium phosphate (KD*P), ß-barium borate (BBO), or cadmium telluride (CdTe).

Antireflective (AR) coating offerings for standard and custom wavelengths include dielectric anti-reflection (AR) coatings on fused silica windows for high laser damage threshold applications. High transmission SolGel AR coatings on KD*P eliminate the need for index-matching fluid.

Q-switches for high power lasers are based on lithiumniobate (LiNbO3) grown in-house. LiNbO3 Q-switchesprovide low loss and high contrast ratio, and are preferredfor rugged military and industrial applications.

DRIVERSG&H has also designed a range of Pockels cell drivers for these devices, suitable for incorporation into lasers and laser systems. The Q-DriveTM is engineered for performance and durability and is also available as a compact, packaged benchtop model or unpackaged for OEM integration (the R-DriveTM).

ELECTRO-OPTICS

GOOCH & HOUSEGO 35

POCkELS CELLSReliable Q-switching for high power and repetition rates

A Pockels cell alters the polarization state of light due to birefringence in an electro-optic crystal, induced by an applied voltage. An optical switch can be created by adding polarizing elements to perform very rapid Q-switching of a laser.

Drawing on proprietary crystal growth and fabrication techniques and decades of experience in electro-optic device design, G&H manufactures high quality longitudinal and transverse electrode configuration Pockels cells in ß-barium (BBO), cadmium telluride (CdTe), potassium dihydrogen phosphate (KDP) and potassium dideuterium phosphate (KD*P). Factors such as wavelength, average power, repetition rate, and aperture size determine the best material and design for each application.

KD*P POCKELS CELLSWe offer small and large aperture model KD*P Pockels cells, generally used for applications under 10 kHz repetition rate. The compact IMPACT series delivers premium performance for OEM integration, while the CQx series packages the same performance in a larger footprint as a drop-in replacement for the Qx series (already widely deployed in the field for over a decade). The large aperture Tx series is designed for use as optical isolators, protecting beam lines in ultra-high power laser systems.

BBO POCKELS CELLSWe recommend BBO Pockels cells for applications over 10 W of power and for repetition rates up to 600 kHz. Our low-loss designs employ transverse electric field geometry with dual crystals to minimize drive voltage, and are not subject to tracking degradation. Custom options include single crystal cells, extra-long, reduced voltage cells, attenuated cells for applications requiring ultra-low piezoelectric response and cells with water-cooled apertures for high average power operation.

CADMIUM TELLURIDE POCKELS CELLSMid-infrared Q-switching applications use CdTe for wavelengths up to 12 µm and repetition rates up to 100 kHz. Our water-cooled designs allow power handling in excess of 10 W, and are available with application specific anti-reflection (AR) coatings.

PRODUCT SERIES WAVELENGTH VOLTAGE CONTRAST RATIO APERTURE OPTICAL MATERIAL PRODUCT CODE

IMPACT Series 300-1300 nm >2000:1 @1064 nm 8-13 mm KD*P IMPACT xx

CQx Series 300-1300 nm >2000:1 @1064 nm 8-15.5 mm KD*P CQx xx

Qx Series 300-1300 nm Varies 9.25-19.5 mm KD*P Qxxxxx

Tx Series 300-1300 nm Varies 19.5-99 mm KD*P Txxxxx

LightGate Series 300-1600 nm >1000:1 @1064 nm 2.6-7 mm BBO LG x

IRx Series 5-12 µm >500:1 @10.6 µm 3-7, 4x10 mm CdTe IRxx

ELECTRO-OPTICS

ApplicationsAmplifiers, CO2 lasers, laser fusion, materials processing, medical and aesthetic laser systems, metal annealing, micro-machining, optical switching, petawatt lasers, Q-switching, regenerative amplifiers.

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Standard LG4 Attenuated LG4

Section through a Pockels cell, illustrating the Pockels effect

36 GOOCH & HOUSEGO

POCkELS CELL DRIVERSRobust, compact packaged drivers for Q-switch applications

The G&H series of Pockels cell drivers complement our full range of available Pockels cells, and are available in several configurations: benchtop drivers, unpackaged, or customized.

BBO and KD*P Pockels cells typically need a high-voltage source capable of delivering many kilovolts in several nanoseconds to function as a Q-switch driver. Our drivers are designed and tested for maximum safety and reliability, whether operating in commercial, military, or scientific Q-switched laser systems, or in regenerative amplifiers. Our short circuit proof drivers use long life components and meet US Navy derating specifications.

Q-DRIVETM FOR COMPACT, BENCHTOP Q-SWITCHINGThe Q-DriveTM was developed with a differential output to eliminate high DC voltages relative to ground at the Pockels cell. Insulation stress and stray capacitance effects are minimized with isolated 50 Ω trigger inputs for high noise immunity and optimum signal integrity. Compact in size, it can be placed close to the Pockels cell, avoiding long high voltage wires. OEM models are even smaller, available with custom boards for incorporation into unique system designs. A remote control connector allows convenient single-point connection to all driver functions, with remote high voltage (HV) adjustment, HV on/off control, and HV signal monitoring.

R-DRIVETM FOR REGENERATIVE AMPLIFIER AND OEM APPLICATIONSThe compact, customizable, and cost-effective design of the R-DriveTM Pockels cell driver is designed specifically for use with BBO Pockels cells at quarter wave voltage. Ideal for regenerative amplifiers and OEM system designs up to 100 kHz, it can be incorporated into new products or retrofitted as an upgrade to existing designs. In addition to safety features like a differential voltage design and limited pulsed voltage potential, this driver integrates a short circuit proof design with high quality components to maximize lifetime and reliability. The R-DriveTM can be customized for each application, from wiring and signal interfaces to cooling by air, water, or conduction/convection.

ApplicationsQ-switching, regenerative amplifiers.

PRODUCT RISE/FALL TIME VOLTAGE OUTPUT REPETITION RATE

APPLICATIONS PRODUCT CODE

EO Q-Switch Driver 6.5 ns 2-4.5 kV 0-1 kHz Compact Q-switching Q-Drive

R-Drive Pockels Cell Driver 5.5 ns 0-2.5 kV 0-100 kHz Regenerative amplifiers R-Drive

ELECTRO-OPTICS

Falltime voltage across cell

Typical waveform using EO driver

GOOCH & HOUSEGO 37

LIThIUM NIOBATE Q-SwITChESQ-switching for rugged military and industrial applications

An electro-optic Q-switch can be used to modulate the loss in a laser cavity at GHz switching speeds to generate high intensity, pulsed laser light. Q-switch lithium niobate (LN) crystals operate on the Pockels effect, altering the polarization state of light via electrically-induced birefringence. By placing the crystal between a pair of cross-polarizers, light can be passed or blocked at very fast switching speeds.

G&H grows and polishes high quality lithium niobate (LN) crystals in-house for low wavefront distortion, applying electrodes for use in the transverse mode (i.e., electric field perpendicular to the optic or z-axis). Our LN crystals offer high extinction ratio, very low transmission loss, and low switching voltage and temperature stability throughout a wide temperature range. High-performance antireflective (AR) coatings are applied to each face, reducing loss to ≤0.2% per surface while withstanding high optical power (>500 MW/cm2 upon request).

Proprietary temperature-stable (xTS) versions allow operation over a wide range of temperatures while maintaining excellent contrast ratio. Typical LN Q-switches suffer from pyro-electric charge buildup at low temperatures, leading to premature lasing if radioactive americium is not used to ionize the air around the crystal and bleed off the charge. We have developed a proprietary thermo-chemical reduction technique to increase conductivity of our LN crystal faces to dissipate charge and eliminate the premature lasing effect. While this process increases insertion loss slightly, it allows our -xTS series to be used in low-temperature environments such as aerospace.

ApplicationsOphthalmic surgery systems, Pockels cells, Q-switching, range-finders, target designators.

PRODUCTSERIES

WAVELENGTH DAMAGETHRESHOLD

SIZE ExTINCTION RATIO WAVEFRONT DISTORTION/FLATNESS

PRODUCT CODE

7100-2 1064 nm 200 MW/cm2 9x9x25 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 99-48205-01

7100-4 1064 nm 300 MW/cm2 7.4x7.4x21 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 99-48202-01

7100-11A 1064 nm 300 MW/cm2 9x9x25 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 97-00970-03

7100-4 TS 1064 nm 300 MW/cm2 7.4x7.4x21 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 99-48302-12

7100-01 xTS 1064 nm 300 MW/cm2 9x9x25 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 97-00970-13

7100-11 1064 nm 500 MW/cm2 9x9x25 mm ≥20:1 @ 633 nm ≤λ/8 @ 633 nm 97-00970-10

ELECTRO-OPTICS

GOOCH & HOUSEGO 39

FIBER OPTICSGooch & housego has been manufacturing the highest quality fiber optics since 1985. Our fiber optic group comprises two manufacturing and engineering centers known for their photonic engineering services and creating products for applications when reliability cannot be compromised. Environments where such consistency and longevity of performance are requisite include undersea and space. Components operating in such conditions have to be guaranteed not to fail.


Products

Assemblies and Subsystems

Fiber Optic Assemblies 41High Reliability Erbium-Doped Fiber Amplifiers 42

Active Components

DFB Lasers and Modules 43Fiber-Q™ Fiber-Coupled Acousto-Optic Modulators 44Fiber-Q™ Drivers 44Fiber-Coupled Pump Lasers 45High Speed Detectors 46Laser Controllers 47

Passive Components

Fused Fiber Optic Components 48

FO

40 GOOCH & HOUSEGO

We develop and qualify fiber optic and semiconductor laser technology originally used in the telecom industry, adapting it for defense applications and deep space deployment – environments where the benefits of reliability, light weight, small size, and lower cost of ownership are compelling.

We offer products and services from proof of concept through full scale volume production, lending customers our expertise in integration of end-to-end fiber optic systems and design for harsh environments. From custom packaging of semiconductor devices to fiber optic assemblies and fused biconical tapering, we have developed best in class design and manufacturing techniques to optimize performance and reliability.

We support customers in systems development, components selection, manufacturing, and testing. Our engineering expertise includes passive and active fiber optics design, optoelectronics design, thermo-optic mechanical design, electrical design, RF design, material systems, hardware selection, process development, advanced micro-optic assembly, integration, laser welded photonic packaging and testing. In our HI REL component production we employ sub-micron alignment and efficient light coupling is maintained throughout product lifetime. This precision, combined with the ability to hermetically seal devices in a dry, inert atmosphere enables us to supply customers with reliable and robust packaged devices.


G&H offers a range of space and Telcordia-qualified high performance active and passive fiber optic components and optical modules for use in laser, sensing, and communication (avionic, submarine and space) applications.

QUALIFIED FOR SPACE, TELCORDIA, AND MIL-STDMany of our photonic solutions are qualified for space or are currently deployed. We understand how to develop, design, and manufacture for extremes of temperatures, radiation, shock, and vibration. Our photonic components are qualified to Telcordia or MIL-STD standards. Active components are hermetically sealed using best industry practices, and many are RoHS compliant. As one of the first providers of fused fiber couplers, we have developed proprietary manufacturing equipment and processes, honed to deliver leading edge performance and reliability.

ITAR COMPLIANTWe have extensive capabilities and experience supporting and managing the unique needs of government sponsored development programs. US customers can work with and source directly from a US-based supplier who can leverage capabilities and products across all worldwide divisions of G&H.

FIBER OPTICS

GOOCH & HOUSEGO 41

FIBER OPTIC ASSEMBLIESIntegrated fiber optics to simplify your designs

G&H offers custom modules of passive and/or active optical components integrated to provide higher functionality in a compact footprint. Our optimized designs use low loss G&H products and advanced assembly techniques such as ribbon splicing and fiber recoating to provide robust solutions that reduce development costs and speed time to market. Our more complex designs have included bulk optics, fiber optics, motion control, and electronics.

We optimize fiber assemblies for minimum temperature dependence and maximum reliability by performing finite element stress and strain analysis in 3D solid modeling software. Optical modeling tools are used to design and analyze complex optical trains, including fiber lasers and fiber amplifiers. We can design power, control, and monitoring circuits to optimize component performance and minimize noise.

All fiber assemblies are produced in Class 10,000 cleanrooms equipped with state-of-the-art equipment. Proprietary techniques are used for mounting fiber optic components and routing fibers in a robust and reliable process while maintaining optimum optical performance. We have in-house facilities for reliability testing, including thermal cycling chambers, high power lasers, and shock and vibration testing equipment. In addition to custom module designs implemented as build-to-specification or build-to-print, we also offer a range of standard drop-in modules for a wide range of functions.

The products listed in the table below illustrate examples of fiber optic modules. Our product managers and sales engineers routinely work with customers, applying our expertise to customize products or build to customers’ own designs.

ApplicationsBiomedical instrumentation, fiber laser systems, interferometry, LIDAR, medical diagnostics, optical branching networks, optical coherence tomography (OCT), retinal scanning systems, sensing, spectroscopy, telecommunications.

PRODUCT DESCRIPTION

Motorized Variable Optical Delay Line Varies optical path length quickly and accurately in a compact housing with single fiber pigtail.

Fiber Collimator A range of non-contact style, single-mode fiber collimators incorporating achromatic lenses; standard and custom.

Fiber Pigtailed Laser Lasers pigtailed using single-mode, PM or multi-mode fibers, 405-1550 nm; standard and custom.

Network Expansion Module Splits optical signals in single-mode optical fiber for optical networking applications; 1x3 to 2x16 standard, custom available.

Custom Modules Assemblies of low loss G&H passive and/or active optical components designed to provide a specific functionality.

Butterfly Pigtailed Laser Butterfly lasers pigtailed using single-mode, PM or multi-mode fibers, 630-1550 nm; standard and custom.

FIBER OPTICS

OCT delay line

42 GOOCH & HOUSEGO

hIGh RELIABILITY BOOSTER ERBIUM-DOPED FIBER AMPLIFIERSModules for space flight and harsh environments

Fiber amplifiers are used widely to boost signals in terrestrial telecommunications, and can be designed to enable transmission distances of more than 70 million kilometers for use in the next generation of deep space probes.

G&H’s high-reliability erbium-doped (EDFA) and erbium/ytterbium co-doped (EYDFA) fiber amplifier modules are designed to operate in demanding thermal, vibration, and radiation environments. When offered as OEM modules, they can be controlled and monitored through an electrical interface – ideal for system integration into laser transmitters, including satellite laser communication terminals.

The G&H optical amplifier product family includes pre-amplifiers, mid-booster amplifiers, and high power amplifiers. Versatility is allowed for with different levels of laser modem and terminal system integration:

Gain blocks offer direct access to optoelectronic components allowing for •external controlEDFA modules include circuitry to monitor and control the optical fiber •amplifier operationDigital or analog interfaces can be provided with tailored functions and •control levels

Customized optical performance, enclosures, port configurations, and amplifier arrays in a single housing can be created to meet end-user and mission requirements for optical and electronic functionality, as well as mechanical housing customization. Our units integrate high reliability passive and active components fabricated in-house, maintaining full visibility and control over the supply chain.

Our track record in the design and development of high reliability photonic components includes deployment on ESA’s Earth Observation Satellite to measure soil moisture and ocean salinity (SMOS) and NASA’s LADEE satellite to demonstrate the first high-speed laser communication link from the moon to Earth.

PRODUCT CODE WAVELENGTH OUTPUT POWER GAIN FLATNESS FIBER

OFA-BA-H-xxxx-x 1530-1565 nm +16 to +20 dBm < 0.5 dB PM/SM

FIBER OPTICS

ApplicationsOptical inter-satellite links, satellite to ground laser communications, deep space probes.

GOOCH & HOUSEGO 43

DFB LASERS AND MODULESHigh power and bandwidth in ruggedized butterfly packages or OEM modules

Distributed feedback (DFB) lasers provide tunable wavelength output with extremely narrow spectral width and long coherence length. Integrated modules offer further narrowing of the spectral line in a compact OEM package with a simple tuning interface.

DFB lasers feature a grating on the chip level structure to generate feedback into the cavity which ultimately enables stable, smooth, and precise wavelength tuning via temperature control of the chip. Additional feedback or external locking methods can ensure extremely stable wavelength control through many years or decades of use.

Our DFB lasers serve a wide range of industrial, defense, medical, and scientific applications, with performance-enhancing design features that include:

Integrated thermoelectric coolers (TECs) to reduce current consumption and •extend operating temperature rangePrecision thermistors for accurate feedback and control of chip temperature•Internal isolators to protect against back reflections and to reduce noise •perturbations into the laser

DFB LASERS IN 14-PIN OR 7-PIN PACKAGEDFB lasers provide precise single-frequency and single-spatial-mode performance with smooth tuning capability via temperature or current (chirp) tuning. We offer a range of products with high power and high bandwidth options in a rugged, single-emitter, fiber coupled 14-pin or 7-pin butterfly package. Our high power series offers options up to 100 mW with >2.5 GHz direct modulation speeds, while our high bandwidth series offers up to 18 mW with >12 GHz direct modulation speeds.

In addition to the variety of standard wavelength options in the 1-1.62 mm region, additional custom options are available upon request.

PRODUCT CODE WAVELENGTH POWER OPTIONS FIBER FEATURES

AA1401, AA1406 1529-1610 nm 40, 50, 63, 80, 100 mW PM or SM

AA1402 1617 nm 80 mW PM or SM

AA1415 1529-1610 nm 40, 50, 63, 80, 100 mW PM or SM High isolation

AA1416 1537-1565 nm 40 mW PM or SM High isolation, high efficiency TEC



AA0701 1310, 1527-1565 nm 10, 18 mW PM or SM High bandwidth

FIBER OPTICS

ApplicationsDistributed temperature sensing (DTS), fiber optic telecommunications, gas sensing, interferometry, laser Doppler vibrometry (LDV), LIDAR, RF over fiber, seed lasers, spectroscopy.

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DFB LASER MODULES Building upon our proven 14-pin packaged DFB lasers, G&H also offers compact OEM modules with excellent linewidth performance. All G&H modules comprise an integrated DFB laser, low noise diode driver, and TEC controller. To operate, the user need only provide a simple 5V power supply and voltage based tuning signals for temperature or current (chirp) adjustment, if required. The incorporation of an ultra-low noise current source for the diode offers a vastly improved linewidth.

The EM650 typically provides 200 kHz linewidth in a hand-sized package, roughly 66x64 mm (2.5”x2.5”) in size. The EM750 features an additional external cavity to reduce the linewidth to approximately 10 kHz while emitting up to 50 mW out of the fiber.

PRODUCT CODE WAVELENGTH POWER OPTIONS LASER TYPE FIBER FEATURES

EM650 1064, 1310, 1529-1617 nm 40, 50, 63, 80, 100 mW DFB PM or SM 200 kHz typ linewidth

EM750 1532-1575 nm 30, 50 mW DFB PM or SM 10 kHz typ linewidth

EM655 1310, 1530, 1550, 1570 nm 10, 18 mW DFB PM or SM >12 GHz direct modulation

FIBER OPTICS

FIBER-Q™ – FIBER-COUPLED ACOUSTO-OPTIC MODULATORSFiber-coupled acousto-optic modulators (FCAOM) are a compact, robust solution for fiber laser modulation and frequency shifting, allowing direct control of the timing, intensity, and temporal shape of the laser output. Direct integration of a fiber optic acousto-optic modulator into a fiber-based system allows the optical path to remain closed for better power handling and reliability, in addition to lower loss.

For visible and infrared wavelengths, our Fiber-QTM modulators offer high extinction ratio, low insertion loss, and excellent stability in both single-mode (SM) and polarization-maintaining (PM) formats at modulation frequencies up to 30 MHz. Built for reliability, these products feature rugged hermetic designs in compact, low-profile packages, ideal for ease of integration into all-fiber and OEM systems.

See page 18 for more information about G&H Fiber-QTM modulators

FIBER-Q™ DRIVERSEach Fiber-QTM acousto-optic modulator requires an RF driver to control the embedded acousto-optic crystal, as modulation of the beam depends upon the frequency and intensity of the applied RF signal.

G&H drivers for the Fiber-QTM series of modulators are designed for constant RF power output, fast modulation, and with conductive cooling via the baseplate. When tuned together with the modulator, they offer stable, dependable modulation to enable all-fiber laser systems.

See page 26 for more information about G&H Fiber-QTM drivers.

GOOCH & HOUSEGO 45

FIBER-COUPLED PUMP LASERSRuggedized, high power multi-mode and single-mode fiber-coupled lasers

Our high power diode lasers feature ruggedized, epoxy-free designs intended for use in a wide range of harsh, long-life environments. Cooled and uncooled options are available to meet the most demanding diode laser applications.

Single-mode (SM) pump lasers emit a low noise, precisely controlled, polarization maintained level of light at a specific wavelength out of a small-core fiber. G&H’s series of cooled and uncooled diode laser products are designed with precise micro-alignment that stays true and stable through wide temperature ranges and high shock/vibration environments. All SM lasers feature a fiber Bragg grating (FBG) for stable, low noise operation. Customers may select to use the laser without the grating to enable temperature tuning of the central wavelength. The latest series of AC1409 SM lasers from G&H feature high PER performance, enabling superior PM pump combining and other polarization extinction ratio (PER) sensitive applications. In addition to standard products, output wavelength and other options can be customized for new applications.

Multi-mode (MM) lasers offer high output power. G&H offers standard 14-pin fiber-coupled package designs and other formats upon request. Cooled designs allow for wavelength tuning of the output for even greater wavelength control of the laser, while uncooled options feature higher power output.

G&H lasers are designed to ensure highly reliable operation across wide temperature and environmental conditions.

A variety of low size, weight, and power custom designs can be employed to meet demanding aerospace and space mission applications. We also offer design and qualification services to ensure high reliability and long life under launch conditions for space mission applications.

PRODUCT CODE FIBER PACKAGE WAVELENGTH COOLING POWER

AC1409 PM or SM 14-pin 974, 976, 980 nm Active 600, 700 mW

EM278 PM or SM mini-DIL 976 nm None 200 mW

EM322 through EM327 0.15 or 0.22 NA 14-pin 915, 940, 960 nm None 7 W

EM328, EM329 0.15 or 0.22 NA 14-pin 975 nm None 6 W

EM330 through EM337 0.15 or 0.22 NA 14-pin 915, 940, 960, 975 nm Active 5 W

EM339 0.15 or 0.22 NA 14-pin 808 nm Active 3 W

FIBER OPTICS

ApplicationsFiber lasers, fiber optic, gyroscopes, inspection, infrared sensing, life sciences, marking.

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hIGh SPEED DETECTORSRipple free, linear response from DC to 20 GHz

High speed detectors (HSDs) are a crucial component at the interface between optical and electrical communications systems to achieve clean conversion of photonic RF signals to electrical RF signals at high bandwidth and fidelity. Our photodetector designs offer low dark current or noise, and perform with excellent responsivity.

The EM169 photodetector series offers bandwidth rated to a minimum of 20 GHz over multiple wavelength bands with a single device, including 1310 nm, C-band, and L-band. The new EM530 photodetector further expands the product range with a dramatic increase in power handling over the same broad wavelength range, and features a bandwidth of 10 GHz. For a 50 mW input signal, the EM530 photodetector provides a 32 mA photocurrent level, thus increasing the level by a factor of 10 compared to the EM169 and other comparable photodetectors.

Manufactured in volume, G&H’s two high speed photodetector devices are rated for performance over a wide temperature range. Our designs maximize photodetector performance to enable higher power and high speed ruggedized systems for defense and other demanding applications.

ApplicationsRF over fiber, phased arrays, infrared sensing, optical signal processing.

PRODUCT CODE WAVELENGTH MAxIMUM POWER

RESPONSIVITY BANDWIDTH FIBER FEATURES

EM169-xx 1280-1620 nm 6 mW ~ 0.95 A/W 20 GHz PM or SM High speed

EM530-xx 1280-1620 nm 100 mW ~ 0.65 A/W 10 GHz PM or SM High photocurrent

FIBER OPTICS

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LASER CONTROLLERSConvenient USB or touch-pad interface control of diode lasers

Benchtop laser controllers provide a convenient interface for operation of diode lasers in production or laboratory environments. Our easy-to-use controller is compatible with single-mode (SM) and DFB lasers in standard 14-pin butterfly packages, allowing simple touch-pad or computer control of interchangeable lasers with different wavelength or power characteristics.

The EM595 benchtop controller combines a laser driver and thermoelectric cooler (TEC) controller into a compact, benchtop device with an intuitive user interface. With 1.5 A of laser drive current available, the G&H EM595 laser diode driver can operate any 14-pin DFB or single-mode laser. The 3.0 A of current available for the TEC provides ample controlling capability for typical room or lab temperature environments, with the capability of operating single mode (SM) or distributed feedback (DFB) lasers over their full rated range. Precise temperature control results in accurate laser frequency control. The EM595 establishes a new level of low noise and linewidth performance in a benchtop device.

The ability to easily swap lasers with different wavelength or power characteristics allows a single controller to operate several lasers. This is useful for experiments involving repetitive testing where users need to dynamically modify operational parameters to meet test objectives. In production environments, the benchtop EM595 unit allows quick and easy testing and verification of a variety of products flowing through a production line. The automation offered by our laser diode driver further saves time and money while maintaining quality, calibrated results.

ApplicationsLaboratory and production testing.

PRODUCT PRODUCT CODE DIODE CONTROL RANGE NOISE/RIPPLE

Benchtop Laser Controller EM595 0-1.5 A < 10 µA

FIBER OPTICS

48 GOOCH & HOUSEGO

G&H manufactures a comprehensive line of optical taps, power combiners, attenuators, and WDMs based on fused fiber technology for wavelengths from the visible through near-infrared.

Fused fiber couplers split and combine light signals by coupling light directly between the fiber cores, offering advantages in efficiency and reliability over filter-based couplers. By varying the parameters of the fusion and tapering process, our components precisely control the proportion of light split between fibers and the wavelength at which the split occurs.

G&H fused fiber components are used for branching of optical signals and interfacing in telecommunications, sensor, and biomedical systems. We also offer a dedicated delay line to meet the needs of optical coherence tomography (OCT) based systems, and components for operation at 2 µm.

Our fused coupler production process has been honed over decades to achieve low insertion loss, high power handling, and high extinction ratio, with exacting manufacturing controls to ensure high quality and reliability.

We have extensive experience in the volume production of fused fiber components for telecommunications deployment, and can customize any of our designs to meet the needs of volume OEM applications. Our engineers apply their knowledge to design custom products for our customers, to meet their unique needs. The tables shows a range of typical G&H fused fiber components.

Single-Mode Fiber ComponentsG&H single-mode couplers are used to achieve accurate monitoring and splitting of optical signals from 1% to 50%. Polarization-maintaining (PM) couplers are available in slow axis, fast axis, and axis-independent variants.

PRODUCT FUNCTION WAVELENGTH

Fixed Attenuator Attenuator C, L, C+L, S-band

Dual Window Wideband Coupler Tap coupler 1310 nm, C-band

Visible Wavelength Coupler Tap coupler 400-700 nm

Near Infrared Coupler Tap coupler 700-1200 nm

Ultra Low Ratio Tap Coupler Tap coupler 700-1600 nm

Fused Coupler, 980 nm Tap coupler 980 nm

NxN Fused Coupler Tap coupler 980, 1310, 1480, 1550, 1585 nm

Fused Coupler, C or L band Tap coupler C, L-band

Subminiature Tap Coupler Tap coupler C, L, C+L, S-band

Fused Coupler, C+L or S band Tap coupler C+L, S-band

Visible Wavelength Combiner WDM 400-700 nm

Near Infrared WDM WDM 700-1199 nm

Fused Pump Signal WDM WDM 980 nm, C, L, C+L-band

Subminiature Pump Signal WDM WDM 980 nm, C, L, C+L-band

Duplexing WDM, 1x2 or 2x2 WDM 1310 nm, C, L-band

Fused Pump Signal WDM WDM 1480 nm, C, L-band

FUSED FIBER OPTIC COMPONENTSThe highest performance fused fiber couplers and high power combiners

FIBER OPTICS

ApplicationsAvionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, LIDAR, medical diagnostics, optical coherence tomography (OCT), sensing, telecommunications.

GOOCH & HOUSEGO 49

PM Fiber ComponentsG&H polarization-maintaining (PM) couplers are available in ratios from 1% to 50%, and are manufactured using industry standard fiber. PM couplers are available in slow axis, fast axis, and axis-independent variants.


PM Combiner Combiner 980, 1060, 1450, 1550, 1650 nm

High Power Connectors and Patchcords Connectors 750-2100 nm

PM Coupler Tap coupler 750-1700 nm

PM Bow Tie Fiber Coupler Tap coupler 900-1200 nm

Axis-Matched Low Ratio Tap Tap coupler 900-1600 nm

Ultra Low Ratio Tap Coupler Tap coupler 900-1700 nm

PM WDM WDM 750-1600 nm

OCT Components and Sub-Systems


OCT Fiber Collimator Collimator 840, 1060, 1300 nm

OCT Optical Delay Line Delay line 850, 1060, 1310 nm

OCT Coupler, 850 and 1300 nm Tap coupler 850, 1060, 1310 nm

OCT Coupler, 1060 nm Wideband Tap coupler 840, 1060, 1300 nm

OCT Coupler, Ultra Wideband Tap coupler 840, 1060, 1300 nm

2 µm Components


2+1x1 Power Combiner with PM signal feedthrough, 2μm

N+1x1 750-850, 2000 nm

6+1x1 Power Combiner with signal feedthrough, 2μm

N+1x1 750-850, 2000 nm

Fused Coupler, 2µm Tap coupler 1900-2200 nm

Fused Coupler, 2µm Tap coupler 1900-2200 nm

PM WDM, 2µm WDM 1900-2100 nm

SM WDM, 2µm WDM 1900-2100 nm

FIBER OPTICS

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High Power Multi-Mode Pump CombinersOur range of pump combiners for high power fiber lasers is based on precise fusion of multi-mode fiber techniques. For pumping of complex fiber amplifier designs, we have developed a signal feedthrough fiber at the center of the multi-mode fiber bundle, which is both single-mode and polarization-maintaining. All variants are available with custom pump, signal, and output fibers.


6+1x1 Power Combiner with signal feedthrough N+1x1 900-1000, 1064, 1550 nm

6+1x1 Power Combiner with PM signal feedthrough N+1x1 900-1000, 1064, 1550 nm

2+1x1 Power Combiner with PM signal feedthrough N+1x1 900-1000, 1064, 1550 nm

2+1x1 Power Combiner with signal feedthrough N+1x1 900-1000, 1064, 1550 nm

2+1x1 Power Combiner with active PM signal feedthrough N+1x1 900-1000, 1064, 1550 nm

2+1x1 Power Combiner with active signal feedthrough N+1x1 900-1000, 1064, 1550 nm

Multi-mode Power Combiner Nx1 900-1000 nm

High Reliability ComponentsThe G&H line of HI REL components are regularly deployed in harsh environments such as undersea and space, where the costs of component replacement are either prohibitive or impossible and so where reliability is of paramount concern. Our HI REL subsea couplers offer a 0.1 FIT rate, equivalent to one failure in a million components in 25 years. Services for HI REL customers include custom qualification programs, dedicated workstations, full traceability of materials and processing, advanced fiber management, and customer-specific validation tests.


High Reliability Fused Coupler, 980 nm band Tap coupler 980 nm

High Reliability C or L band Fused Coupler Tap coupler C, L-band

High Reliability Pump Signal WDM WDM 980 nm, C-band

High Reliability Pump Signal WDM WDM 1480 nm, C-band

FIBER OPTICS

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POPRECISION OPTICSGooch & housego began manufacturing precision optics in 1948. Today our precision optics manufacturing encompasses five operations, located in the Uk and the US, each focused on its own unique capabilities. From components to modules, the deep vertical integration of our supply chain allows us to maintain control over design, materials and processes, while ensuring quality and security of supply.


Optical Crystal Growth 52Single Point Diamond Turning 52Hy-Per Bond™ – Adhesive and Organic-Free Bonding 53Magnetorheological Finishing (MRF®) 53Superpolishing 54Coatings 54Metrology 55Materials 56

Products

Custom Optical Sub-Assemblies and Modules 57Laser Cavity and Beam Conditioning Optics 58Lenses for Transmission and Imaging 59Research Grade Mirrors and Flats 60Waveplates 61

52 GOOCH & HOUSEGO


G&H develops and manufactures world class precision optical components and assemblies for applications in aerospace & defense, industry, medical systems and scientific research.

Our capabilities include nonlinear optical crystal growth, superpolishing, single-point diamond turning, and crystal quartz waveplate production. We have advanced capabilities in anti-reflection, high reflection, and high laser damage threshold coatings, as well as adhesive-free bonding. As part of a process of continuous improvement, each of our five operations strives to expand, develop, and improve its competencies.

Our products for laser cavity and beam conditioning include active and passive components as well as nonlinear crystals. Many customers employ G&H custom lenses and housed subassemblies in transmission and imaging applications. Much of our business involves creating high quality, custom optics for volume OEM applications and unique optics for research. Our superpolished ring laser gyro mirrors are used in most major aerospace manufacturing programs around the world; we have provided 0.4x0.4 m KDP waveplates to the National Ignition Facility (NIF).

OPTICAL CRYSTAL GROWTHBeginning with the raw chemicals we grow, orient, fabricate, finish, coat, and mount: ß-barium borate (BBO), cadmium sulfide (CdS), cadmium selenide (CdSe), potassium dihydrogen phosphate (KDP), potassium dideuterium phosphate (KD*P), lithium niobate (LiNbO3 or LN), and tellurium dioxide (TeO2).

PRECISION OPTICS

SINGLE POINT DIAMOND TURNINGWe use single-point diamond turning (SPDT) to produce ultra precision infrared optical components such as infrared aspheric, diffractive and spherical optics and gratings. The process of mechanical machining infrared optical components using lathes equipped with diamond tipped tools enables us to manufacture crystal based optical products with a greater degree of precision than otherwise possible with standard machining techniques.

CHARACTERISTICS

Configurations High performance rotationally symmetrical •with raster correction for high precision optics such as IR spherical lenses, aspheres, binary diffractive lenses (plano, spherical, aspherical diffractive), Fresnel lenses, hybrid lenses, mirrors.

Material Calcium fluoride (CaF• 2), chalcogenide glass (gallium arsenide), germanium, silicon, zinc selenide, zinc sulphide, multi-spectral zinc sulphide (CLEARTRAN™) and other materials on request. Refer to materials table for further details.

Sizes Diameter range from 8.0-250.0 mm•

Surface form error

≤0.25 µm P-V (depending on material and •configuration)

GOOCH & HOUSEGO 53

HY-PER BOND™ – ADHESIVE AND ORGANIC-FREE BONDINGHy-Per BondTM, our adhesive-free bonding process, overcomes issues such as beam distortion and performance degradation resulting from the outgassing of optical cement. Hy-Per BondTM is more tolerant of temperature differentials than optical contacting when used in high energy, humid, or cryogenic applications. By activating precision optical surfaces prior to joining them, permanent bonds are formed between the components, improving environmental stability. When bonding low expansion ceramics, thermal distortion is negligible.

Key features include:

Space qualified•No outgassing•In shear strength trials the bulk material fails, rather•than the bondNegligible thermal distortion•Resistant to moisture and vibration•Maintains strength at cryogenic temperatures•Stronger than optical cement (>50 MPa)•Alignment at submicron accuracy•Bond thickness ~100 nm•

PRECISION OPTICS

Hy-Per BondTM is suitable for a wide range of materials, including fused silica, ZERODUR®, crystal quartz, and optical glasses. Hy-Per BondTM can also be utilized for large surface areas, up to 170 cm2. Bonds tested achieved a laser induced damage threshold (LIDT) of >15 J/cm2, significantly better than typical epoxy-based bonds.

MAGNETORHEOLOGICAL FINISHING (MRF®)MRF® is a patented, deterministic lens surface finishing process which G&H uses to improve form finish of precision optical components. This technique enables us to control optical polishing with a greater degree of precision than conventional lap polishing. These complement existing polishing capabilities for surface correction when enhanced precision is required.

CHARACTERISTICS

MRF® polishing service Flats, spherical lenses and aspheres•

Materials Common glasses (Schott, Ohara, Hoya, Sumita, CDGM, etc.), fused silica, glass ceramics, calcium fluoride, silicon, •germanium. Refer to materials table for further details.

Size Up to 200 mm in diameter•

Form figure Up to • λ/50 P-V

Metrology Sub-aperture stitching interferometer (SSI®) to measure high numerical aperture, large clear aperture parts, •transmitted wavefront testing.

54 GOOCH & HOUSEGO

SUPERPOLISHINGFor ring laser gyroscope (RLG) mirrors, R&D applications, short wavelength and ultrafast lasers, superpolishing offers significantly superior performance compared to products from other optics manufacturers. G&H’s process delivers Scratch-Dig of 5-2, less than 0.5 Å of surface roughness, and zero defects at 300x magnification.

Most superpolished optics are supplied with polished or acid-etched outside diameters and bevels. These extra refinements add to the level of cleanliness and durability of the components. Superpolished materials include N-BK7, calcium fluoride, crystal quartz, fused silica,sapphire, silicon carbide, YAG and Nd:YAG, and ZERODUR®.

Roughness comparison showing superpolishing vs. regular high quality optical polishes

Sapphire Polishing

Sapphire is a unique material well suited for many ultra-precision optical applications. It is transparent from the lower UV (142 nm) through the mid IR (6.5 µm). Its high tensile strength makes it well suited to many high g-force environments. In addition, sapphire is very tolerant of high radiation environments, such as space-based applications. Due to its high mechanical strength, sapphire is a very difficult material to polish. Our unique superpolishing processes allow us to polish sapphire components to better than 1 Å surface roughness.

Silicon Carbide

Silicon carbide (SiC) is often used in the optics industry to replace components previously manufactured out of beryllium. The material offers a viable alternative with low weight, high specific stiffness, high thermal conductivity and excellent dimensional stability. We have developed expertise in polishing silicon carbide mirrors, and can polish CVD SILICON CARBIDETM and lightweighted versions of this material.

G&H also offers customer-supplied substrate polishing services. Additionally, we offer SiC cladding with IBS coatings to ensure the finest possible final surface finish. Lastly, we also supply optical coatings on the finished mirror.

COATINGSG&H operates four facilities with thin film optical coating capabilities: two in the US and two in the UK; each with multiple chambers. We offer customers temperature stable optical coatings to meet high laser damage thresholds at short pulse lengths across the bandwidth of commercial laser wavelengths from deep UV through to far IR.

Our expertise in coating has been supported by investment in custom built, ultra-clean, high repeatability chambers to meet customers’ evolving needs for environmentally-stable optical coatings. Our engineers are continuously researching the performance characteristics of new coating materials and integrating the results into our modelling software to optimize the designs for customers’ applications.

We have a comprehensive range of coating techniques:Thermal evaporation•Electron-beam (e-beam)•Ion assisted deposition (IAD)•Ion beam sputtering (IBS)•

A chamber that incorporates thermal, e-beam and an ion source provides increased coating flexibility. This enables us to tune and allow selective bombardment of the various coating materials during deposition to match challenging substrate types and meet exacting performance requirements.

We use thermal evaporation for deposition of metals and dielectrics which are less compatible with e-beam coating. For the many materials that are compatible however, the e-beam technique provides coating with lower stress where surface flatness is a priority, higher laser induced damage threshold (LIDT), and improved control of impurities in the deposited material.

E-beam is especially useful for coating components foroperation at deep ultraviolet and infrared wavelengths.

Ion assisted electron beam (IAD) coating deposits robust coatings with very high laser induced damage threshold (LIDT) and very low thermal shift.

IAD coatings are widely utilized for optical systems designed for the defense industry where multiple laser wavelength devices are required to work together in rugged environments.

Ion beam sputtering (IBS) generates very dense, hard coatings ideal for very high reflection and low loss requirements. IBS is thus well-suited to finishing super-polished mirrors – whether for cutting edge research or for Ring Laser Gyros (RLG). IBS coatings have a lower LIDT than IAD coatings.

PRECISION OPTICS

GOOCH & HOUSEGO 55

PRECISION OPTICS

DEPOSITION TECHNOLOGY COATING TYPES OFFERED

Thermal evaporation Metallic•

Electron beam gun evaporation (e-beam)

High-reflection (HR)•Anti-reflection (AR) •V-coats, double-V coats•Broadband AR•

Ion assisted e-beam deposition (IAD)

High-reflection (HR)•Anti-reflection (AR) •V-coats, double-V coats•Broadband AR•Bandpass filters (high and low)•

Ion beam sputtering (IBS) Dielectric mirrors•High-reflection (HR)•

As part of the quality control process, we test our coated optics using the following processes:

Temperature cycling, adhesion, abrasion and•humidity testing to ISO and MIL standards.Transmission measurements made using•spectrophotometers with wavelengths from 300 nmto 28 µm.

METROLOGYTo deliver high quality components and systems, it is critical to accurately measure and test processed optical components with high precision and accuracy.

METROLOGY INSTRUMENT / SYSTEM CAPABILITIES

6” GPI™ LC interferometer Visual fringe analysis of flat or spherical surfaces•Transmitted wavefront measurement, OD≤ 4”•

NewView™ 5000 white light interferometer Fast, non-contact, high-precision 3D metrology of surface features•

QED SSI stitching interferometer Measures aspheric optics up to 1000 • λ from best fit sphereMeasures components with NA up to 1 (full hemispheres)•Measures plano, convex, or concave surfaces, OD≤200 mm•

Form Talysurf® PGI 1240 and 1250 Measures dimension, form, and texture on curved surfaces•

Nikon 6D Autocollimator Prism angle measurement•

PrismMaster goniometer® Prism angle measurement•

Opticentric® Centration measurement and alignment•

Computer generated holograms (CGH) 3D full aperture testing in conjunction with an interferometer•Can create virtually any wavefront shape•

Laser centration systems Used for aberration-corrected lens assemblies•Enables mechanical re-balancing and pusher cell technology to optimize lens systems•

Coordinate measuring machines (CMM) Measures microscope objectives and complex lenses in 3D•

ZYGO® is a registered trademark of the Zygo Corporation GPI™ and NewView™ are trademarks of the Zygo Corporation

Ion beam sputtering (IBS) coated laser mirror Reflectance confirmed with cavity ring-down spectroscopy (CRDS)

99.950

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Talysurf® is a registered trademark of Taylor HobsonPrismMaster® and Opticentric® are registered trademarks of Trioptics

At G&H, we have invested in world class measurement equipment to ensure the parts our customers receive meet the most exacting of specifications.

56 GOOCH & HOUSEGO

MATERIALSOur expertise in optical materials begins with the selection of the correct material to meet the requirements of customers. We grow much of our own crystalline material and employ rigorous sourcing procedures for those crystals externally procured. We routinely work with a wide variety of optical glass types.

MATERIAL APPLICATIONS

ß-barium oxide (BBO) Pockels cells

Cadmium selenide (CdSe) Infrared waveplates

Cadmium sulfide (CdS) Infrared waveplates

Calcite (CaCO3) Polarizers

Calcium fluoride (CaF2) Lenses, windows, mirrors

Chalcogenides: GASIR®, AMTIR Wide bandwidth windows and lenses

CVD SILICON CARBIDETM (silicon carbide) Mirrors

Deuterated dihydrogen potassium phosphate (KD*P) Ultra high energy research lasers

Dihydrogen potassium phosphate (KDP) Pockels cells

Filter glasses Optical filters

Fused silica Acousto-optic devices, high power laser optics, low expansion substrates

Gallium arsenide (GaAs) Infrared windows and lenses

Germanium (Ge) Infrared windows and lenses, acousto-optic devices

Glasses: flint, crown, fused silica Prisms, lenses, and flats

Lithium niobate (LiNbO3) Acousto-optic devices, waveplates/retardation plates and depolarizers

Lithium triborate (LiB3O5) Frequency doubling

Low CTE glass: ZERODUR®, CLEARCERAM®-Z Mirrors for metrology, ring laser gyro blocks, stable optical mounts, metrology reference blocks

Magnesium fluoride (MgF2) Achromatic waveplates, polarizers, waveplates

Multi-Spectral Zinc Sulphide: CLEARTRANTM Infrared lenses

Phosphate glasses (P2O5) Laser rods

Quartz: synthetic SiO2 Acousto-optic devices, waveplates, rotators

Sapphire: α-Al2O3 Very hard windows and waveplates

Silicon (Si): polycrystalline, mono-crystalline, standard optical grade, floatzone Infrared windows and lenses

Silicon carbide (SiC) Optical flats

Spinel: MgAl204, Co:MgAl204 Passive Q-switches

Tellurium dioxide (TeO2) Acousto-optic devices

YAG: Y3Al5O12 Laser rods

Zinc Selenide (ZnSe) Infrared lenses

Zinc Sulfide (ZnS) Infrared lenses

The level of vertical integration of our manufacturing processes allows us to provide dependable design advice, and improves the quality of our finished products through unified standards and reduced component handling between manufacturing steps.

PRECISION OPTICS

GASIR® is a registered trademark of UmicoreCVD SILICON CARBIDETM is a registered trademark of the Dow Chemical CorporationZERODUR® is a registered trademark of Schott AGCLEARCERAM®-Z is a registered trademark of Ohara CorporationCLEARTRANTM is a registered trademark of the Dow Chemical Corporation

GOOCH & HOUSEGO 57

CUSTOM OPTICAL SUB-ASSEMBLIES AND MODULESFrom simple holders to complex assemblies in clean room environments

G&H engineer precision optical sub-assemblies and modules for demanding custom applications in commercial and military aerospace, space exploration, defense, industry, life sciences, and scientific research.

We have developed custom bonded multi-element optical components, mounted optical assemblies, and modules with integrated electronics for use at visible through long-wave infrared (LWIR) wavelengths. We draw on an extensive internal production network to optimize optical designs down to the component level, retaining control of every aspect of manufacture in our cleanrooms. Component manufacture and integration is often performed in the same geographical region. This allows local control over the full vertical supply chain; a benefit to our customers as the continuity and quality of supply is more directly managed.

Benefits of Sub-assemblies and Modules from Gooch & HousegoDrop-in placement and alignment•Ease of handling•Reduced cost, damage, contamination•External surfaces can be designed for easy cleaning•Reduced need for cleanroom assembly at customer facility•Stock can be maintained at G&H for quick delivery•Improved customer supply logistics•

We understand the stringent controls and documentation required for military and defense applications, working between multiple facilities to meet export legislation requirements, and quality requirements (ISO 9001, AS9100). Customers count on us to consistently deliver the right product to the required specifications on time throughout multi-decade programs.

We design for manufacture, using optical and mechanical modelling to optimize performance within known manufacturing limits, and to ensure a consistently high level of product quality.

ApplicationsDental imaging, dermatology, designating, endoscopy, high power laser systems, hyperspectral imaging, machine vision inspection, metrology, optical coherence tomography, optometry, projection rangefinding, reconnaissance, surveillance, targeting, thermal imaging.

ASSEMBLY TYPE RANGE OF CAPABILITIES

Laser cavity and beam conditioning sub-assemblies Mirror and acousto-optic sub-assemblies •Zero order waveplates, retarders•Assembled prisms, beamsplitter cubes •Frequency doubling crystals•

Transmission and imaging sub-assemblies Doublet, triplet lenses•Beam focusing lens sub-assemblies•Integrated electro-mechanic components•Custom housings and mounts•

Optical modules Integrated optics and electronics•Build to print, or design and manufacture•Optimized optical performance, footprint, power consumption•

PRECISION OPTICS

Optomechanical assembly

58 GOOCH & HOUSEGO

Laser systems range from individual laser diodes to research installations generating megajoule femtosecond pulsed light for nuclear fission research.

G&H offers components for systems across the spectrum, from small lenses to huge waveplates, all manufactured within AS9100 and ISO9001 accredited operations in the US and the EU, and shipped in compliance with relevant export regulations.

Beyond acousto-optic Q-switches, we manufacture pump lenses, gain media, electro-optic Q-switches, passive Q-switches, beam polarizers, splitters and combiners, retro-reflecting prisms and corner cubes, beam steering wedges, waveplates and de-polarizers, and high reflection and leaky mirrors.

The high quality of our precision optics is controlled by our end-to-end in-house manufacturing capabilities, from crystal growth facilities, crystal boule orientation and cutting, CNC machining, single point diamond turning, smoothing, double side, lap and chemical polishing and superpolishing, MRF® finishing to coating.

ASSEMBLY TYPE RANGE OF CAPABILITIES

Pump lenses High laser damage threshold, common pump wavelengths available•

Laser media YAG: Y• 3Al5O12Spinel: MgAl• 204, Co:MgAl204AR coatings for low loss, high laser damage threshold intra cavity optics•Phosphate glass•

Mirrors High-reflection or leaky•

Beamsplitters Plate or cube•Polarizing and non-polarizing coatings•Single wavelength, dual laser wavelengths, or broadband•Extinction ratios > 99:1, higher upon request•

Prisms Retro-reflectors, corner cubes, penta, periscope, Porro, rhomb, Wollaston•Amici, Brewster, dove, right angle, roof•Beam steering wedges•Compound prisms; optional coatings and housings•

Waveplates Crystal quartz waveplates with aperture up to 150 mm•Cadmium sulphide, cadmium selenide, magnesium fluoride•Multiple-order, net zero-order, true zero-order – mounted and unmounted•Off-axis and achromatic designs•

Depolarizers Birefringent wedges in quartz, LiNbO• 3, YVO4

Q-switches Electro-optic or passive•

LASER CAVITY AND BEAM CONDITIONING OPTICSHigh quality custom optical components for laser systems

PRECISION OPTICS

GOOCH & HOUSEGO 59

LENSES FOR TRANSMISSION AND IMAGINGLenses and assemblies for volume applications

We manufacture custom lenses for imaging, focusing, collimation and illumination applications in the aerospace, security, defense, machine vision, health care, and life science industries.

Our manufacturing capability includes both traditional and state of the art CNC machines for grinding, polishing and edging of a wide range of lens types, including single point diamond turning for creating diffractive optical elements on aspheres, and MRF® for ultra-accurate surface accuracy.

Plano, concave, convex, diffractive, aspheric lenses•Singlets, doublets, triplets, achromats•Round or complex edges and bevel structures•Single point diamond turning•Materials: glasses, silica, silicon, germanium, GaAs, ZnS, ZnSe, CaF• 2, chalcogenidesCoatings: 240 nm to 14 μm•Radius from 2.0 mm to infinity•Surface figure: up to • λ/50 wave peak to valley (P-V)Maximum diameters: glass aspheres to 70 mm, diamond turning to 250 mm, •MRF® to 200 mm, and traditional techniques extend capability to 500 mm

All lenses are validated using state-of-the-art metrology, including reflectance and transmission measurements. We test the coated lenses for adhesion, abrasion, and humidity.

COMPOUND LENSESG&H manufactures doublets and triplets, performing alignment, bonding, centering, and edge grinding. We also build opto-mechanical sub-assemblies in our clean rooms, both to minimize handling of delicate optics and to provide easy-to-handle parts for drop-in assembly.

SWIR LENSESWe have optimized a high precision lens system for short-wave infrared (SWIR) imaging for InGaAs cameras. Sharper machine vision and security images facilitate more accurate automated object identification in situations where basic visible systems cannot operate. See table for specifications.

All lenses are validated using state-of-the-art metrology, including reflectance and transmission measurements, and adhesion, abrasion and humidity tests. All lens assemblies are subject to environmental testing.

ApplicationsThermal and hyperspectral imaging, cinematography, projection, machine vision, lasers, metrology, optometry, endoscopy, dental imaging, dermatology.

PRODUCTNAME

PRODUCTCODE

WAVELENGTH FOCAL LENGTH

IRIS RANGE CLEAR APERTURE

FIELD OF VIEW FOCUSING RANGE

Barle GHL-F1 900-1700 nm 25 mm F1.4-F16 0.5”, ⅔”, 1” 55° 0.7-infinity

PRECISION OPTICS

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Tangential @ Centre Tangential y=9mm

Sagittal y=9mm Tangential y=12.8mm

Sagittal y=12.8mm

Coated aspheric lens

Barle 25 mm SWIR lens assembly

60 GOOCH & HOUSEGO

RESEARCh GRADE MIRRORS AND FLATSCustom mirror solutions for research and OEM applications

We manufacture custom high reflectivity mirrors for specialized applications in research and industry, drawing on our proprietary processes for superpolishing materials such as fused silica, ZERODUR®, silicon, silicon carbide, and sapphire. Low loss, low scatter, ion beam sputtered (IBS) coatings offer high laser induced damage threshold (LIDT) and excellent environmental stability.

In addition to custom laser cavity and beam routing mirrors, we have created superpolished mirrors for the Mars Curiosity Sky Crane, the ring laser gyroscopes used in most the manufacture of most major commercial aircraft, and for synchrotron facilities. We have produced transmissive and reflective fused silica optics for many of the LIGO (Laser Interferometer Gravity Wave Observatory) facilities around the world.

Our superpolished flat or concave research grade mirror substrates offer surfaces better than 1 Å surface roughness. We go beyond the MIL spec requirements for magnification and illumination when performing surface quality inspection, allowing us to detect defects in the range of only a few microns. We routinely polish and inspect to 10-5 scratch and dig, and can work beyond 5-2. We have also delivered special projects that require zero defects at more than 300x magnification.

ApplicationsLaser and x-ray research, interferometers, UV and LIDT optics, ultrafast lasers.

PRODUCT TYPE RANGE OF CAPABILITIES

Optical flats and parallels For use as reference standards or mirror substrates•Plano/plano or plano/concave•Laser quality • λ/50 wave flatness, > 5-2 scratch dig surface quality

Laser cavity and beam routing mirrors Very low reflectivity, high reflection low loss, high laser damage threshold•Protected and enhanced metal reflector coatings for improved abrasion and climatic resistance •at low power

Synchrotron mirrors Low scatter, high surface figure, and low surface quality•5-500 mm, with sub-micron dimensional tolerance•Rhodium, gold, platinum, chrome, silver coatings•

Silicon carbide mirrors CVD SiC and lightweight versions•Option for customer supplied substrates•Optional SiC cladding (≤ 10 μm thick) or other IBS coatings•

Ring laser gyro mirrors, frames, and diaphragms

Extremely tight tolerance machining•Angular specs•Polished chamfers and bevels, minimal edge defects•

Superpolished mirror substrates Superpolished flat or concave mirrors•Better than 1 Å surface roughness•

Superpolished synchrotron mirror

Example of precision optical flat

PRECISION OPTICS

GOOCH & HOUSEGO 61

wAVEPLATESCustom-configured solutions across the spectrum

Waveplates, also known as retardation plates, are used to manipulate the polarization properties of light. We select the appropriate parameters, such as orientation and thickness to suit the requirements of the customer and application.

G&H has a long history of producing waveplates, with variants including:

Multiple-order •Net-zero-order•True zero-order•Dual band•Achromatic•Infrared•Off-axis•

Synthetic crystal quartz is the normal choice of material for ultraviolet through visible and near-infrared applications from 193-2050 nm and is available up to 150 mm diameter. Magnesium fluoride, sapphire and lithium niobate have more niche applications. Magnesium fluoride is often paired with quartz to create dual band and achromatic waveplates. Zero order and achromatic waveplates are doublets, and can be air spaced or optically contacted. For applications over 3 µm, cadmium sulfide (CdS) and cadmium selenide (CdSe) are the preferred materials.

For extremely large high power installations, we grow and fabricate dihydrogen potassium phosphate (KDP and KD*P) waveplates up to 0.43x0.43 m.

The vast majority of our waveplates are custom designs for specific laser systems, including range finding, dimensional metrology and high power beam focusing for industrial and bio-medical applications.

We have a small number of standard designs for infrared applications, with a range of standard holders.

ApplicationsBiomedical, military, aerospace, astronomy, surveillance, optical isolation, laser power control and attenuation, semiconductor industry.

Square and circular waveplates

Two waveplates manipulating the polarization of light

PRECISION OPTICS

GOOCH & HOUSEGO 63

INSTRUMENTATIONGooch & housego has more than 45 years of experience in photonics system design and manufacturing. we are the supplier of choice for test and measurement instruments in leading R&D laboratories as well as the solid-state and LED lighting, automotive lighting, avionics, and display industries.


Test and Measurement 65

Product Overview 66

LMI

64 GOOCH & HOUSEGO


G&H’s instrumentation division is recognized worldwide as the expert in spectroradiometry for both instrumentation and calibration services (specifically measurements from 200 nm to 30 µm).

INSTRUMENTATION

We design, engineer, and manufacture commercial off-the-shelf (COTS) light measurement instrumentation systems and offer contract manufacturing services. Our instruments enable precision light measurement for defense and security, industrial, and life science applications.

Our instruments and systems provide accurate, repeatable, NIST traceable, research-grade measurements in the UV-VIS-NIR-IR wavelength ranges for research, academia, industry, and the military. Our light measurement systems are designed to provide consistent, precise, and repeatable measurements throughout the life of the instrumentation.

We have specialized expertise in opto-mechanics and photonic systems. G&H engineers have extensive experience with demanding commercial product delivery, as well as customer designed and OEM solutions for light measurement applications and requirements.

ENGINEERING AND DESIGNCE compliant design•Current source precision regulation•Custom electro-optical/mechanical design and•developmentDigital signal processing/image processing•Extremely low level detection technology (1 fA, 1 nV•resolution)Integrating sphere technology•ISO 9001 engineering, project management and•documentation structureOptical modeling/systems design•Precision motion control•Windows• ®, Mac® and embedded softwaredevelopment capabilities

PRECISION CONTRACT MANUFACTURING AND TESTING

Diffuse reflectance coating and electro-static•discharge (ESD) facilitiesISO 9001:2008 accreditation•Manufacturing enterprises and supply chain•management systemsNIST-traceable test and calibration services•Precision opto-mechanical and electronics assembly•(instrumentation)Systems level integration and test•

COMMERCIAL OFF-THE-SHELF PRODUCTS AND SERVICES

Spectroradiometers for testing night vision•compatibility, LED, OLED, IRED and displaymeasurements, detector spectral response, internaland external quantum efficiencies, and more.Spot and imaging colorimeters for highly accurate•luminance and color measurementsRadiometers/photometers for total luminance,•illuminance and broadband radiance and irradiancemeasurementsHyperspectral/multi-spectral imaging systems for•life science research and stand-off detectionCalibration and measurement services•- Spectroradiometric calibration- Characterization of detectors and light sources- Calibration standardsSpectroradiometric standards and power supplies•- Spectral irradiance/illuminance standards- Spectral radiance/luminance; standards- Detector standardsIntegrating spheres•OEM and custom design and development•Sphere coating services•

GOOCH & HOUSEGO 65

TEST AND MEASUREMENTServices

Using high accuracy standards and precise optical instrumentation our engineers can perform a full range of NIST-traceable measurement services. From C.I.E 127 to LM-79/LM-80, IEC 62471 to VESA and IDMS, we offer comprehensive test and measurement solutions.

Measurement services for source spectral analysis include:

Average luminous intensity (candelas) – Average radiant intensity (watts/sr)•Color purity – Correlated color temperature (CCT)•Color rendering indices – Chromaticity coordinates•Color rendering indices (CRI) – Relative power•External quantum efficiency•Half bandwidth – Correlated color temperature (CCT)•Maximum intensity – Chromaticity values•Night vision compatibility (NVIS) (MIL-STD 3009 and MIL-L-85762A)•Peak wavelength – Dominant wavelength •Photobiological hazard assessment: UV/thermal (IEC 62471)•Peak wavelength – Half-bandwidth•Photosynthetic active radiation (PAR)•Spectral irradiance (W/cm• 2) – Illuminance (lm/cm2)Spectral radiance (W/cm• 2/sr/nm) – Luminance (lm/cm2/sr)Total radiant flux (W) – Total luminous flux (lm) – Total spectral flux (W/nm)•Tristimulus values – Lab/Luv values•

In addition to source spectral analysis, we also have the capability to provide the following services:

Detector spectral response (including FPAs & IR Cameras)•Solar cell spectral response and quantum efficiency•Diffuse and specular reflectance•Linear and divergent/diffuse transmittance•Goniometric reflectance and transmittance (intensity vs. angle)•Lumen maintenance•

INSTRUMENTATION

66 GOOCH & HOUSEGO

PRODUCT OVERVIEwComponents and instruments for spectroradiometry

We offer products and custom solutions for highly challenging program requirements, drawing on our depth of expertise and vast experience in optics, mechanics, electronics, software, firmware, photonics, and systems integration. Our flexible production facilities can accommodate demanding commercial and quick-turn production, as well as custom designed and OEM solutions.

STANDARDSOur integrating sphere standards are designed for accurate instrument calibration (photometric, radiometric, or spectroradiometric response) with manual and motorized, computer-controlled variable apertures. We provide high-accuracy irradiance standards based on the NIST spectral irradiance scale. Specular and diffuse reflectance standards are available for use in bi-directional reflectance distribution factor (BRDF) applications, and as targets for irradiance to radiance conversion.

DETECTORSG&H manufactures a range of detectors. Available technologies include extended InGaAs, Ge, HgCdTe, InGaAs, InSb, PbS, PbSe, PMT, pyroelectric, Si. NIST-traceable calibration of these detectors can be provided to support spectroradiometry systems configured to spectrally characterize the response of sensors, focal plane arrays (FPA) and cameras, as well as solar cells.

INTEGRATING SPHERESWe provide integrating spheres in a range of sizes, as well as a multitude of baffle and port configurations, to meet any source or input optic requirement. Sphere coatings for applications in the UV through IR wavelength ranges are available.

INSTRUMENTATION

OL455 High-intensity Integrating Sphere Calibration Standard

OL462 Automated High intensity Integrating Sphere Calibration Standard

OL IS-1800H 18-Inch Integrating Sphere (with vertical opening)

GOOCH & HOUSEGO 67

SCANNING SPECTRORADIOMETERSPRODUCT CODE WAVELENGTH FEATURES

OL750 0.20-30 μm (depending on model)

Source analysis (irradiance or radiance), •transmittance, specular reflectance, diffuse reflectance, and detector responseEntirely computer-controlled•

OL756 200-800 nm Extremely low stray light levels•Built-in overload feature to protect the highly sensitive photomultiplier (PMT) cathode from •saturationUSB interface, auto-ranging PMT signal acquisition system•

OL750-NVG 380 to 930 nm Complete turnkey system for spectroradiometric and photometric Certification of night vision •(NVIS) compatible lighting devicesExceeds MIL-L-85762A and MIL-STD-3009 requirements•

MULTI-CHANNEL SPECTRORADIOMETERSPRODUCT CODE WAVELENGTH FEATURES

OL770 LED Series(LED Measurement)

200-800 nm Designed for solid state and other lighting sources and fully compliant with CIE 127•Wavelength accuracy of 0.5 nm•Can measure luminaires up to approximately 1.2 m long when coupled to our spheres •≥ 2 m, full automated integrating spheresSoftware development kit for integration with production and materials handling systems•High-speed USB interface•Ability to create custom Word and Excel report templates•

OL770 DMS Series(Display Measurement)

200-800 nm Accurate color, luminance and spectral information of displays•Picture of measurement area provided and may be stored with data•Custom field of views (FOVs) available•Capable of diffuse and specular reflectance measurement and sunlight readability following ICDM •IDMS1 in both a manual and automated positioning configuration770-ADMS version for results in .ies format•

OL770-NVS System(Night Vision Display Test and Measurement)

380-1100 nm Fast, multi-channel measurements of spectral radiance, luminance, chromaticity, NVISa and NVISb•Powerful user-friendly software, precise direct viewing imaging optics, and DSP technology•Fast, multi-channel measurements of spectral radiance, luminance, chromaticity, NVISa and NVISb•Pass/fail results per MIL-L-85762A and MIL-STD-3009 requirements•

OL770-InGaAs(High-speed, Multi-channel Spectroradiometer)

850–1700 nm Modular design for easy integration with 770 series to cover an even wider spectral range with •same accessoriesApplications include chemometrics, determining atmospheric absorption, solar simulation, and •IRED source measurements

INSTRUMENTATION

OL 756 Portable UV-VIS Spectroradiometer OL 770-LED Test and Measurement System OL 770-DMS Display Measurement System

68 GOOCH & HOUSEGO

COMPANY HEADQUARTERSGooch & housego PLCDowlish FordIlminster TA19 0PFUKT: +44 1460 256440

EUROPEGooch & housego (Glenrothes)PRECISION OPTICAL ASSEMBLIES AND COMPONENTSTelford Road Glenrothes KY7 4NxUKT: +44 1592 771590

Gooch & housego (Torquay)PASSIVE FIBER OPTIC COMPONENTS, MODULES AND PhOTONICS PACkAGINGBroomhill WayTorquay TQ2 7QLUKT: +44 1803 611700

Gooch & housego (Uk)ACOUSTO-OPTIC COMPONENTS, PRECISION OPTICAL ASSEMBLIES AND COMPONENTSDowlish FordIlminster TA19 0PFUKT: +44 1460 256440

Gooch & housego (Deutschland)EUROPEAN SALES OFFICEBerliner Allee 5522850 NorderstedtGermanyT: +49 40 528899 12

USAGooch & housego (Boston)ACTIVE FIBER OPTIC COMPONENTS, MODULES AND PhOTONICS PACkAGING7 Oak Park DriveBedfordMA 01730USAT: +1 781 275 7501

Gooch & housego (California)PRECISION OPTICAL ASSEMBLIES AND COMPONENTS5390 Kazuko CourtMoorparkCA 93021USAT: +1 805 529 3324

Gooch & housego (Ohio)CRYSTAL AND ELECTRO-OPTICCOMPONENTS AND ASSEMBLIES676 Alpha DriveHighland HeightsOH 44143USAT: +1 216 486 6100

Gooch & housego (Palo Alto)ACOUSTO-OPTIC, CRYSTAL-OPTIC AND LIThIUM NIOBATE PRODUCTS44247 Nobel DriveFremontCA 94538USAT: +1 650 300 5744

Gooch & housego (Orlando)LIGhT MEASUREMENTINSTRUMENTATION AND CALIBRATIONSERVICES4632 36th StreetOrlandoFL 32811USAT: +1 407 422 3171Toll free from the US: 1 800 899 3171

ASIAGooch & housego (Japan)JAPAN SALES OFFICELevel 4, Nikko Shoken Building3-2-3 Sakae, Naka-ku, Nagoya, 460-0008 JapanT: +81 90 5615 2610

LOCATIONS

CONTACT US

GET IN TOUCH we enable leading organizations all over the world by delivering tailored, innovative solutions to meet precise requirements.

For specific information or to discuss your next project, please visit goochandhousego.com, e-mail us at [email protected] or call the relevant sales contact.

GOOCH & HOUSEGO 69

SySTEMS & COMPONENTS – GLOBAL SALES TEAM

Senior Vice President, Sales (Europe & Asia-Pacific)Paul MorrisT: +44 7843 349553E: [email protected]

AEROSPACE & DEFENSE

EUkey Account Manager Aerospace & DefenseGary SinclairT: +44 7917 533559E: [email protected]

Business Development Manager Aerospace & DefenseTrevor CookT: +44 7891 133728 E: [email protected]

USADirector of Business Development, Aerospace & DefenseIwan DoddT: +1 440 561 7123E: [email protected]

INDUSTRIAL, LIFE SCIENCE & SCIENTIFIC RESEARCH

ASIAAsia Sales DirectorMartin ChengT: +852 6348 6199 (Hong Kong)T: +86 138 2873 3243 (People’s Republic of China)E: [email protected]: China, South Korea & Taiwan

South Asia Account ManagerTak-Sing LamT: +65 9159 3261E: [email protected] Territory: India, Singapore, Malaysia, Thailand and Vietnam

Japan Sales DirectorMasashi WadaT: +81 90 5615 2610E: [email protected]

EUEuropean Sales DirectorEkkehard OverbeckT: +49 8152 396 1702E: [email protected]

Business Development Manager Precision OpticsPete WilliamsT: +44 7736 278044E: [email protected]

Germany, Austria and Switzerland Account ManagerBernhard UhlhaasT: +49 221 677 707 99E: [email protected]

Account Manager Southern EuropeSébastien LenoirT: +33 6 08 78 52 56E: [email protected]: Southern Europe and Turkey

European Sales Manager, ML OpticGary NewhamT: +44 7915 533559E: [email protected]

European Sales AssistantAnja SchumacherT: +49 40 5288 9912E: [email protected]

USADirector of Sales, AmericasTom McGunigalT: +1 540 305 5020E: [email protected]

US East Coast Regional Sales Manager Tom GeyerT: +1 781 491 6941E: [email protected]

US west Coast Regional Sales Manager Merrill ApterT: +1 650 354 0156E: [email protected]

US west Coast key Accounts Manager Jim DataT: +1 408 887 5510E: [email protected]

Sales Manager, Fiber OpticsVinnie RodinoT: +1 781 275 7501 extension 1203E: [email protected]

INSTRUMENTATION

USAVice President, Life Sciences InstrumentationAlex FongT: +1 407 422 3171E: [email protected]

Internal SalesMaureen KnowlesT: +1 407 422 3171 extension 206E: [email protected]

SALES CONTACTS

CONTACT US

70 GOOCH & HOUSEGO

CONTACT US

N. AMERICA

USAEASTERN US

XSoptix, LLCContact: Mike Carr800 Village Walk #316GuilfordCT 06437USAT: +1 203 401 8093E: [email protected]

Territory: Alabama, Connecticut, District of Columbia, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin.

WESTERN US

Photonics-USA431 200th St SWLynnwoodWA 98036USAT: +1 970 372-5954F: +1 303 223-3417E: [email protected]

Territory: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming.

EUROPE

GERMANYEQ Photonics GmbhACOUSTO, NON-LINEAR OPTICS AND RF PRODUCTSContact: Franz SchwarzbauerObere Hauptstrasse 30/32D-85386 EchingGermanyT: +49-89-319-019-23E: [email protected]

ISRAELNew TechnologyContact: Sagie Cohen11 Tuval Street7th FloorRamat Gan 52522IsraelT: +972-3-6792000E: [email protected] www.newtech.co.il

ITALYdB Electronic Instruments SRLVia Teano 220161 MilanoItalyT: +39 02 646 9341E: [email protected]

POLANDLambda SystemContact: Radoslaw KreftKreft Barszczewski Sp.J.Czerniakowska 155/10900-453 WarsawPolandT: +48 22 622 20 14M: +48 666 026 793E: [email protected]

RUSSIAN FEDERATIONSpecial Systems, LLC194044Saint-PetersburgBolshoy Sapsonievskiy Prospect32 building.ARoom 2A-301RussiaT: +7 812 385 7297E: [email protected]

ASIA

CHINAAnte Laser Technology Co Ltd. (a subsidiary of Sintec Optronics)ACOUSTO, ELECTRO, AND FIBER OPTICSFloor 2, Building F, Guangdong Soft-Park11# Caipin RoadScience TownGuangzhouGuangdong Province510635PR ChinaT: +86 20 2839 5114 / 5167 / 5172 / 5176E: [email protected]

Aunion Tech Co.,Ltd.ACOUSTO-OPTICSRoom 2802, F BuildingEverbright Convention and Exhibition CenterNo. 86 Caobao RoadShanghai 200235ChinaT: +86 21 5108 3793E: [email protected]

hanRay Group Ltd. (a subsiduary of Shanghai Unisilver Technology Ltd.)Room 1613, 16/F, TaiYau Building181 Johnston RoadWanchaiHong KongT: +852 3645 8129E: [email protected]

DISTRIBUTORS

Distributors represent all G&h products unless specified otherwise

mailto:[email protected].

mailto:[email protected]


http://www.eqphotonics.de/


http://www.newtech.co.il/


http://www.db-electronic.it/


http://www.lambdasystem.pl/



http://www.antelaser.com.cn/


http://www.auniontech.com/


GOOCH & HOUSEGO 71

CONTACT US

Shanghai UniSilver Technology Ltd.Room 1908, 81 South Qinzhou Roadxuhui DistrictShanghai200235PR ChinaT: +86 (21) 60625330E: [email protected]

wuhan Sintec Optronics Co., Ltd.No.219, Optics Valley 2nd RoadEast Lake New Technology Development ZoneWuhan, Hubei Province430205PR ChinaT : +86 (27) 51858988E: [email protected]

Miracle Photonics Technology Co., Ltd.FIBER-COUPLED ACOUSTO-OPTICS, FIBER OPTICSRoom 121, Building #2 Zhongfu Ligong BuildingNo. 8 xingongcun South RoadFengtai DistrictBeijingChina 100076T: +86 (10) 56546916E: [email protected] or [email protected]

JAPANAutex, IncTakasago Building.16-5, Tomihisa-ChoShinjuku-kuTokyo 162-0067JapanT: +81 3 3226 632E: [email protected]

New Metals5/F Kyobashi TD Building2-51-ChromeKyobashi Chuo-KuTokyo 104-0031JapanT: +81 3 3231 8600E: [email protected]

Opto ScienceNaitocho BuildingNaitocho1 BanchiShinjuku-kuTokyo 160-0014JapanT: +81 3 3356 1064E: [email protected]

hakuto Co., Ltd.FIBER OPTICS1-13Shinjuku 1-ChomeShinjuku-KuTokyo 160-8910JapanT: +81-3-3225-8910www.hakuto.co.jp

KOREAL2k (Laser Leader of korea)530 Migun Techno World II533-1 Yongsan-DongYuseong-Gu, Daejeon305-500KoreaT: +82 42 9347744E: [email protected]

INDIA, MALAYSIA, PHILIPPINES, SINGAPORE, THAILAND,VIETNAMNew AgeACOUSTO, ELECTRO, AND FIBER OPTICS1261 Sector-4Urban EstateGurgaon-122001HaryanaIndiaT: 91-124-4086513-16F: 91-124-2331653, 2252647E: [email protected]

India, Philippines, SingaporeSintec Optronics Pte Ltd)10 Bukit Batok Crescent#07-02 The SpireSingapore 658079T: +65 63167112F: +65 63167113E: [email protected] or sales@SintecOptronics.com.sgwww.SintecOptronics.comwww.SintecOptronics.com.sg

Malaysia, Thailand and Vietnam kumpulan Abex SDN BhD Lot 2-6 – Jalan SU/6ALion Industrial ParkSection 2640400 Shah AlamSelangorMalaysiaT: +60(03) 5192 2898F: +60(03) 5192 2633E: [email protected]

TAIWANVeego Technology CorporationNo. 192,Wensin S.10th R.,South DistrictTaichung City40256TaiwanT: +886 4 22603233E: [email protected] or [email protected]

AU & NZ

AUSTRALIA AND NEW ZEALANDCOhERENT SCIENTIFIC Pty Ltd116 Sir Donald Bradman DriveHilton SA 5033AustraliaT: +61 8 8150 5200E: [email protected]


http://www.uni-silver.com/


http://www.518168.cn/



http://www.miraclephotonics.com/



http://www.newmetals.co.jp/


http://www.optoscience.com/

http://www.hakuto.co.jp/


http://www.l2k.kr/


http://www.newagein.com/



http://www.sintecoptronics.com/

http://www.sintecoptronics.com.sg/

mailto: [email protected]



http://www.veego.com.tw/


http://www.coherent.com.au/

72 GOOCH & HOUSEGO

INDEx

Products, Capabilities and Services

FO Active components 43FO Assemblies and subsystems 41AO Beam deflectors 13PO Custom optical sub-assemblies and modules 57FO DFB lasers and modules 43FO Fiber optic assemblies 41FO Fiber-coupled pump lasers 45AO Fiber-QTM fiber-coupled acousto-optic modulators 18AO Fiber-QTM RF drivers 26AO Frequency shifters 14FO Fused fiber optic components 48FO High reliability erbium-doped fiber amplifiers 42FO High speed detectors 46PO Hy-Per BondTM – adhesive and organic-free bonding 53LMI Instrument calibration 66LMI Integrating spheres 66PO Laser cavity and beam conditioning optics 58FO Laser controllers 47PO Lenses for transmission and imaging 59LMI Light measurement dectectors 66LMI Light measurement services 66EO Lithium niobate Q-switches 37CO Lithium niobate wafers 29PO Magnetorheological finishing (MRF®) 53PO Materials 56PO Metrology 55AO Mode lockers 15AO Modulators 16AO Multi-channel modulators 20LMI Multi-channel spectroradiometers 67LMI NIST-traceable test and measurement services 65PO Optical crystal growth 52CO Nonlinear optics 30FO Passive components 48CO Periodically-poled lithium niobate 31EO Pockels cells 35EO Pockels cell drivers 36PO Precision optics coatings 54LMI Product overview 66AO Pulse pickers/cavity dumpers 21AO Q-switches 22PO Research grade mirrors and flats 60AO RF drivers 25PO Single point diamond turning 52LMI Spectroradiometers 67PO Superpolishing 54AO Tunable filters 23PO Waveplates 61

INDEX

Published by Gooch & Housego PLC – January 2016

Every effort has been made to ensure the accuracy of the information contained in this catalog at the time of publication. As part of our policy of continuous product improvement, we reserve the right to change specifications at any time. For the most up-to-date information, please refer to our website.

goochandhousego.com

http://goochandhousego.com/

Gooch & Housego PLC

Dowlish Ford, Ilminster TA19 0PF, United KingdomT: +44 (0)1460 256440 E: [email protected]

http://www.goochandhousego.com

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