Ring resonator gyroscope with reduced backscatter effect

Details Ring resonator gyroscope with reduced backscatter effect Ring resonator gyroscope with reduced backscatter effect

1992-03-31

1995-09-05

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1972

Patent

active

054483530

ABSTRACT:
A ring resonator gyroscope has clockwise and counterclockwise light beams that are frequency shifted by an equal but opposite amount and then have their frequencies varied in antiphase relative to each other about a mean frequency (f.sub.o +f.sub.1 or f.sub.o -f.sub.1) so any backscatter signal is at the difference frequency and locking at zero rate thus is avoided.

REFERENCES:
patent: 4815321 (1989-03-01), Malvern
patent: 4820008 (1989-04-01), Malvern
patent: 4825261 (1989-04-01), Schroeder
patent: 5009505 (1991-04-01), Malvern
patent: 5018858 (1991-05-01), Malvern
patent: 5090810 (1992-02-01), Malvern
patent: 5141315 (1992-08-01), Malvern

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