r·i·tr·i·t rochester institute of technology -proposal to join the lsc- shally saraf rochester...
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R·I·T
Rochester Institute of Technology-Proposal to join the LSC-
Shally SarafRochester Institute of Technology Quantum Electronics Group (RITQEG)
LIGO-G060437-00-ZAugust 15, 2006
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R·I·T
Who is RITQEG?
• Shally Saraf- Part of LSC since 1999
- 1999-2005: Graduate student in Bob Byer’s high power laser lab at Stanford
- 2005-present: Asst. Prof. Electrical Engineering, RIT
• Two MS students from electrical engineering
• Potentially a few undergraduate students from EE and Physics
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R·I·T
Where is Rochester, NY?
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R·I·T
Rochester Institute of Technology• Founded in 1829, moved to Henrietta campus 1968
• Current Enrollment 15,200 students
- 85% undergraduate
- 6600 resident on campus
- 50% from New York State
• Ph.D. program in Microsystems engineering
• 2,700 faculty and staff
• 360 career-oriented and professional programs
• Extensive cooperative education program
- 1,300 companies
- 3,000 students
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R·I·T
Rochester Institute of Technology…• Eight Colleges
- The College of Applied Science and Technology
- The College of Business
- The B. Thomas Golisano College of Computing and Information Sciences
- The Kate Gleason College of Engineering
- The College of Imaging Arts and Sciences
- The College of Liberal Arts
- The College of Science
- The National Technical Institute for the Deaf
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R·I·T
“The Sentinel”
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R·I·T
College of Engineering
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R·I·T
College of Science
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R·I·T
National Technical Institute for the Deaf
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R·I·T
RIT “Tigers”
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R·I·T
Research interests of RITQEG
• High power solid-state lasers
• Quantum noise measurements
• Squeezed light generation
• Terahertz generation and imaging
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R·I·T
Past research for LIGO
• Developed 100-W class Nd:YAG MOPA for Advanced LIGO
• Performed quantum noise measurements in free-space saturated amplifiers
• Developed Resonant Cavity Polarizers
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R·I·T
100-W-class zigzag slab amplifier
• 90% in TEM00 mode at104 W output power!
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R·I·T
Amplifier quantum noise measurements
• Extraction efficiency increases and quantum noise decreases as the amplifier is saturated!
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R·I·T
Proposed work• Build a compact OPO-based squeezer at RIT
- start off with PPLN/PPKTP- investigate other low-loss, high non-linear coefficient materials (GaAs?)- achieve >10 dB squeezing with “squeezer-in-a-box”
• Investigate frequency-dependent squeeze angle generation- cavities and other techniques (EIT?)
• Develop collaborations within LIGO - Nergis’s group at MIT
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R·I·T
Squeezing at the 40 m
• >2 dB squeezing achieved in PPKTP!
• OPO and homodyne detector to be optimized
• Several PPKTP crystals to be tested
• Quantum noise locking of OPO to be implemented
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R·I·T
Proposed work for the period August’ 06- August’ 07
• Design test bed for qualifying nonlinear crystals for squeezer. Start off with PPKTP (?) to develop a baseline similar to the MIT design.
• Design and build PPLN based SHG for pumping OPO.
• Design and build quantum noise locking (QNL) servos for locking OPO and squeeze angle.
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R·I·T
Rochester in the fall