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arXiv · 1812.04694

Rotation measurements using a a resonant fiber optic gyroscope based on Kagome fiber

A. Ravaille·G. Feugnet·B. Debord·F. Gérôme·G. Humbert·F. Benabid·F. Bretenaker
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Abstract

We build a resonant fiber optic gyro based on Kagome hollow-core fiber. A semi-bulk cavity architecture based on a 18-m-long Kagome fiber permits to achieve a cavity finesse of 23 with a resonance linewidth of 700 kHz. An optimized Pound-Drever-Hall servo-locking scheme is used to probe the cavity in reflection. Closed-loop operation of the gyroscope permits to reach an angular random walk as small as 0.004$^\circ/\sqrt{\mathrm{h}}$ and a bias stability of 0.45$^\circ$/h over 0.5 s of integration time.

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A. Ravaille, G. Feugnet, B. Debord, F. Gérôme, G. Humbert, F. Benabid, F. Bretenaker. 2018-12-10. Rotation measurements using a a resonant fiber optic gyroscope based on Kagome fiber. https://doi.org/10.1364/ao.58.002198

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