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Effect of reflections on the drift characteristics of a fiber-optic passive ring-resonator gyroscope

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3 Author(s)
Takahashi, M. ; Mitsubishi Electr. Corp., Amagasaki, Japan ; Tai, S. ; Kyuma, K.

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

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Lightwave Technology, Journal of  (Volume:8 ,  Issue: 5 )