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Laser Frequency Noise Reduction in Resonator Fiber Optic Gyro

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Abstract

Laser frequency noise induced error is a huge barrier to sensitivity improvement in the resonator fiber optic gyro (RFOG). A universal and quantitative laser frequency noise analysis model is presented. A frequency noise measurement method based on a fiber ring resonator is proposed, as a powerful optimum criterion for the loop parameters. With the active frequency stabilization applied, the laser frequency noise is reduced to 0.15/h close to the shot noise limit for the RFOG.

© 2012 Optical Society of America

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