Passive resonant optical microfabricated inertial sensor and met

Details Passive resonant optical microfabricated inertial sensor and met Passive resonant optical microfabricated inertial sensor and met

1997-02-04

1999-02-16

Healy, Brian

Optical waveguides

With optical coupler

385 12, 385 14, 385 42, 385129, 385130, 356350, G02B 626, G01B 902

Patent

active

058728775

ABSTRACT:
Simple passive ring resonator laser gyro. The gyro eliminates the need to separately control the frequency of the two oppositely directed beams. The gyro eliminates the need to alternatively switch the light source at fixed steps of time between the two frequencies at which each of the oppositely directed beams are in resonance. A semiconductor laser diode, the beam source, is locked to one signal and its output is coupled into a closed geometric shape waveguide resonator and then sampled by detectors. The laser beam is maintained at the resonant frequency of one of the directions of propagation in the waveguide resonator. This frequency is determined by a process of modulating and demodulating the beam with a substantially sinusoidal waveform. As such the gyro need not actively switch the laser between the resonant frequencies of both of the directions of propagation in the waveguide resonator. This results in a gyro that has less noise, improved signal quality, and reduced complexity and cost of fabrication.

REFERENCES:
patent: 4135822 (1979-01-01), Ezekiel
patent: 4326803 (1982-04-01), Lawrence et al.
patent: 4630886 (1986-12-01), Haavisto
patent: 4658401 (1987-04-01), Segre et al
patent: 4661964 (1987-04-01), Haavisto
patent: 4674881 (1987-06-01), Lawrence
patent: 5022760 (1991-06-01), Lawrence et al.
patent: 5123027 (1992-06-01), Lawrence et al.
patent: 5229831 (1993-07-01), Carroll et al.
patent: 5325174 (1994-06-01), Danko
patent: 5327215 (1994-07-01), Bernard et al.
patent: 5384637 (1995-01-01), Sanders et al.
patent: 5627644 (1997-05-01), Sanders

Affiliated with

Also associated with

Rating

Passive resonant optical microfabricated inertial sensor and met does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Passive resonant optical microfabricated inertial sensor and met, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive resonant optical microfabricated inertial sensor and met will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2069124