System and method for reducing laser phase noise in a...

Details System and method for reducing laser phase noise in a... System and method for reducing laser phase noise in a...

2011-04-26

2011-04-26

Connolly, Patrick J (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

07933020

ABSTRACT:
A resonator gyroscope comprises a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light source to produce a second slave light locked to the reference light; a resonator coupled to said first and second light sources, the resonator having first and second counter-propagating directions and resonance tracking electronics coupled to the Sagnac resonator to generate a first beat frequency based on a first resonance frequency for the first counter-propagating direction, a second beat frequency based on a second resonance frequency for the second counter-propagating direction, and a third beat frequency based on a third resonance frequency for the second counter-propagating direction; wherein the rotational rate of the resonator gyroscope is a function of the first, second and third beat frequencies.

REFERENCES:
patent: 4135822 (1979-01-01), Ezekiel
patent: 4352562 (1982-10-01), Minden
patent: 4702600 (1987-10-01), Handrich et al.
patent: 4807999 (1989-02-01), Soo Hoo
patent: 4815851 (1989-03-01), Soohoo
patent: 4863272 (1989-09-01), Coccoli
patent: 5090810 (1992-02-01), Malvern
patent: 5100236 (1992-03-01), Hoo et al.
patent: 5112128 (1992-05-01), Soo Hoo et al.
patent: 5141315 (1992-08-01), Malvern
patent: 5237387 (1993-08-01), Sanders
patent: 5398111 (1995-03-01), Cardarelli
patent: 5420684 (1995-05-01), Carroll
patent: 5465149 (1995-11-01), Strandjord et al.
patent: 5923424 (1999-07-01), Sanders et al.
patent: 5926275 (1999-07-01), Sanders et al.
patent: 6175410 (2001-01-01), Szafraniec et al.
patent: 6204921 (2001-03-01), Strandjord et al.
patent: 6690687 (2004-02-01), Ksendzov et al.
patent: 6765678 (2004-07-01), Strandjord et al.
patent: 6778279 (2004-08-01), Lange et al.
patent: 6865317 (2005-03-01), Vahala et al.
patent: 6885794 (2005-04-01), Scheuer et al.
patent: 7034946 (2006-04-01), Chen et al.
patent: 7065276 (2006-06-01), Scheuer et al.
patent: 7149381 (2006-12-01), Margalit et al.
patent: 7327460 (2008-02-01), Sanders et al.
patent: 7362443 (2008-04-01), Sanders et al.
patent: 7372574 (2008-05-01), Sanders et al.
patent: 7463360 (2008-12-01), Hughes et al.
patent: 7515272 (2009-04-01), Strandjord et al.
patent: 7522284 (2009-04-01), Sanders et al.
patent: 7535576 (2009-05-01), Keyser et al.
patent: 7583384 (2009-09-01), Keith et al.
patent: 7586619 (2009-09-01), Strandjord et al.
patent: 2004/0061863 (2004-04-01), Diaonnet
patent: 2007/0133003 (2007-06-01), Sanders et al.
patent: 2007/0242276 (2007-10-01), Hughes et al.
patent: 2008/0137091 (2008-06-01), Sanders et al.
patent: 2010/0046000 (2010-02-01), Kitamura et al.
patent: 2010/0053631 (2010-03-01), Kitamura
patent: 2010/0253948 (2010-10-01), Strandjord et al.
Sanders, “U.S. Appl. No. 61/285,990 Light-Phase-Noise Error Reducer”, Filed date: Dec. 13, 2009, Published in: US.
Hald et al. , “Efficient Suppression of Diode-Laser Phase Noise by Optical Filtering”, “2005 Optical Society of America”, Apr. 11, 2005, vol. 22, No. 11.
Merlo et al. , “Fiber Gyroscope Principles”, “Handbook of Optical Fibre Sensing Technology”, 2002, Publisher: John Wiley & Sons.
Rabus et al. , “Optical Filter and Laser Applications Using Micro Ring Resonators”, “http://www.techonline.com/showArticle.jhtml?articleID=192200552”, Jul. 25, 2001, pp. 1-4.
Xia et al. , “Ultra-Compact High Order Ring Resonator Filters Using Submicron Silicon Photonic Wires for On-Chip Optical Interconnects”, “2007 Optical Society of America”, Sep. 5, 2007, pp. 11934-11941, vol. 15, No. 19.

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