Phase conjugate fiber gyroscope

Details Phase conjugate fiber gyroscope Phase conjugate fiber gyroscope

1984-06-11

1987-07-21

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356351, G01C 1964, G01B 902

Patent

active

046814469

ABSTRACT:
An optical fiber rotation sensor includes an optical fiber coil and a laser for providing a source of coherent light. A beam splitter divides the light source into a first beam and a second beam. The first beam is coupled into a first end of the coil, so that the first beam propagates through the coil from the first end to a second end of the coil. A reflector, such as a mirror or a phase conjugate reflector, reflects the second beam back toward the beam splitter. A scalar phase conjugate reflector reflects the first beam at the second end of the coil so that the reflected first beam propagates back through the coil to the first end and is recombined with the reflected second beam in the beam splitter. A detector measures the phase difference between the reflected first beam component and the reflected second beam component in the recombined beam.

REFERENCES:
patent: 3721497 (1973-03-01), Shutt et al.
patent: 3752586 (1973-08-01), Hutchings et al.
patent: 3807866 (1974-04-01), Zingery
patent: 4120587 (1978-10-01), Vali et al.
patent: 4159178 (1979-06-01), Vali et al.
patent: 4271397 (1981-06-01), Stiles et al.
patent: 4396290 (1983-08-01), Morris
patent: 4405236 (1983-09-01), Mitsuhashi et al.
patent: 4408882 (1983-10-01), Sheem
patent: 4410275 (1983-10-01), Shaw et al.
patent: 4432647 (1984-02-01), Leitl
patent: 4575245 (1986-03-01), Borde
"Scalar Phase Conjugator for Polarization Correction", Yeh Optics Communications vol. 51 #3, 1 Sep. 1984, pp. 195-197.
Fisher et al. "Image Transmission & Interferometry With Multimode Fibers Using Self-Pumped Phase Conjugation", Appl. Phys. Lett. 46(2) 15 Jan. 1985 pp. 113-114.
Fisher et al., "New Optical Gyroscope Based On The Ring-Passive Phase Conjugator" Appl. Phys. Lett. 47(1) 1 Jul., 1985 pp. 1-3.
"Optical Phase Conjugation," Edited by Fisher, Academic Press Inc., Copyright 1983, pp. 71 and 72.
Bergh, et al., All-Single-Mode Fiber-Optic Gyroscope, Optics Letters, vol. 6, p. 198 (Apr. 1981).
Bergh, et al., All-Single-Mode Fiber-Optic Gyroscope with Long-Term Stability, Optics Letters, vol. 6, p. 502 (Oct. 1981).
Bulmer, et al., Fiber Gyroscope with Nonreciprocally Operated, Fiber-Coupled LiNbO.sub.3 Phase Shifter, Optics Letters, vol. 6, p. 572 (Nov. 1981).
Cahill, et al., Phase-Nulling Fiber-Optic Laser Gyro, Optics Letters, Vol. 4, p. 93 (Mar. 1979).
Davis, et al., Closed-Loop, Low-Noise Fiber-Optic Rotation Sensor, Optics Letters, vol. 6, p. 505 (Oct. 1981).
Giuliano, Applications of Optical Phase Conjugation, Physics Today, p. 27 (Apr., 1981).
Yariv, Phase Conjugate Optics and Real-Time Holography, IEEE Journal of Quantum Electronics, vol. QE-14, p. 650 (Sep., 1978).

Affiliated with

Also associated with

Rating

Phase conjugate fiber gyroscope does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase conjugate fiber gyroscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase conjugate fiber gyroscope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-204066