laser & fiber optic
TRANSCRIPT
LASER & Fiber Optics
Dian Lestari
Dwi Lestari R.
Dwi Tiara Tanjung
Laser
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Laser is a device mechanism that emitselectromagnetic radiation, usually in the formof light that can not be seen or can be seenwith normal eyes, through the process ofstimulated emission.
LASER = Light Amplification by StimulatedEmission of Radiation
Definition of LASER
LASER WavelengthDefinition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
LASER Frequency
Generally, the
laser operates
in the visible
spectrum.
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Characteristics of LASER
1.The monochromatic property oflaser light means it is all onewavelength.
2. The directional property of laserlight means that the beam spreadsvery slowly.
3. The coherent property of laserlight means that all the light wavesare in phase.
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Charles Hard Townes (born July 28th , 1915)
Inventor
Arthur Leonard Schawlow (born
May 5th , 1921)
In 1957, Charles Hard Townes and ArthurLeonard Schawlow, at Bell Labs, began aserious study of the infra red laser. As ideasdeveloped, they abandoned infrared radiationto instead concentrate upon visible light. Theconcept originally was called an "opticalmaser".
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
On May 16th 1960
, Theodore H. Maiman
operated the first
functioning laser Maiman's
functional laser used a solid-
state flashlamp – pumped
synthetic ruby crystal to
produce red laser light, at
694 nanometres
wavelength.
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
How does it work?
When the number of electrons in the atomreceiving stimulant / energy from theoutside, there was a release of energy in atime; process called stimulated emission .Therefore, the workflow laser, electrons werefirst taken to a higher energy level . This actionwill make the atom unstable, so the electronswill quickly move to a lower energy level andreleases a photon ( light ) .
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
How does it work
These photons will be reflected by a mirror in the laser, and its interaction with the electrons in the excited state will generate another photon, the wavelength of the phase and the same wavelength. These photons are reflected back and interact with the electrons in the excited state. The other mirror held laser is half-silvered mirror, which only reflect some photons, while others bust out. Rays bust out of this is that light is monochromatic, coherent, and single-phase, which laser light.
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
The Aplication laser light in daily life for :
• Laser Pionter
• DVD / CD player
• Printer
• Barcode Detector
• Laser Cutting
• Lasik Operation
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
LASER PrinterDefinition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Definition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
LASER HazardsDefinition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
1. Eye : Acute exposure of the eye to lasers of certainwavelengths and power can cause corneal orretinal burns (cataracts).
2. Skin : Acute exposure to high levels of opticalradiation may cause skin burns.
3. Chemical : Some lasers require hazardous ortoxic substances to operate.
4. Electrical : Most lasers utilize high voltages thatcan be lethal.
5. Fire : The solvents used in dye lasers areflammable. High voltage pulse or flash lamps maycause ignition.
LASER HazardsDefinition
Wavelength
Frequency
Inventor
How does it work?
Application
LASER Hazards
Definition
Inventor
How does it work?
Application
Fiber optic (optical fiber) is a flexible,
transparent fiber made of glass (silica) or
plastic, slightly thicker than a human hair. It
functions as a waveguide, or “light pipe”, to
transmit light between the two ends of the
fiber. The light source that used is usually
LASER.
Definition of Fiber Optic
Part
Kind
Part of Optical Fiber
Cladding material surrounding the core is
the function reflects the light back
Core is the deepest part or the core of an
optical fiber comprising one or more
fibers, this fiber which is the path for the
signal light the nucleus (core).
Coating Buffer (wrapper) or it could
called jacket is the outermost part is a
plastic coating that will protect the optical
fiber from damage caused by outside
influences. such as humidity, abrasion and
damage.
Definition
Inventor
How does it work?
Application
Part
Kind
Definition
Inventor
How does it work?
Application
Part
Kind
Kind of Fiber Optic
• Single mode
optical fiber with the small core, the
diameter close with the wave length, so
that, the light which entered not reflected
to the wall of cladding.
Definition
Inventor
How does it work?
Application
Part
Kind
• Multi mode
optical fiber with the core’s diameter little
longer which make the laser in the core
will reflected to the wall of cladding, it will
be make the decreasing the bandwidth
from this kind of optical fiber.
Definition
Inventor
How does it work?
Application
Part
Kind
Inventor
1961 : Elias Snitzer and Will Hicksdemonstrated that the laser beam isdirected through a thin glass fiber (fiberoptic). The glass fiber core is quite smallwhich makes the light can only pass onesection only.
Definition
Inventor
How does it work?
Application
Part
Kind
How does it worksDefinition
Inventor
How does it work?
Application
Part
Kind
Application
The aplication of fober optics in daily life for :
•Cabel telephone
•Cable for local area networking (LAN)
Definition
Inventor
How does it work?
Application
Part
Kind
Convert to laser light waves
Computer
Internet
Definition
Inventor
How does it work?
Application
Part
Kind
CONCLUSION
•LASER is a mechanism for a device that emits
electromagnetic radiation, through the
process of stimulated emission.
•Fiber optics is one of the transmission medium
capable of delivering data in the form of light
with a large capacity with high reliability
http://id.wikipedia.org/wiki/Laser
http://id.wikipedia.org/wiki/Serat_optik
http://www.elektroindonesia.com/elektro/ut30.html
http://www.healthiswealthmaui.com/laserfrequencies.html
http://www.google.com/search?q=soal+dan+jawaban+sinar+laser+dan+serat+optik&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://efendybloger.blogspot.com/2012/11/Apa-itu-Fiber-Optik-dan-Bagaimana-Cara-Kerjanya.html
REFERENCES
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