Title :
Effect of reflections on the drift characteristics of a fiber-optic passive ring-resonator gyroscope
Author :
Takahashi, Masanobu ; Tai, Shuichi ; Kyuma, Kazuo
Author_Institution :
Mitsubishi Electr. Corp., Amagasaki, Japan
fDate :
5/1/1990 12:00:00 AM
Abstract :
The effects of reflections on the drift characteristics of a fiber-optic passive ring-resonator gyroscope are shown both theoretically and experimentally. It is shown that the reflected light generated at the fiber ends causes nonreciprocal deformations on the resonant characteristics of a fiber-optic ring resonator and results in a drift on the gyro output. However, a rotation-detection sensitivity as high as 3×10-5 rad/s (τ=30 s) was obtained by reducing the effects of the reflected light with an optical phase modulator
Keywords :
fibre optic sensors; gyroscopes; light reflection; optical modulation; phase modulation; sensitivity; drift characteristics; fiber ends; fiber-optic passive ring-resonator gyroscope; gyro output; nonreciprocal deformations; optical phase modulator; reflections; resonant characteristics; rotation-detection sensitivity; Degradation; Gyroscopes; Optical interferometry; Optical modulation; Optical reflection; Optical ring resonators; Optical sensors; Phase modulation; Resonance; Voltage;
Journal_Title :
Lightwave Technology, Journal of
