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∘/h and a bias stability of 0.45∘/h over 0.5 s of integration time.
@article{arxiv.1812.04694,
title = {Rotation measurements using a a resonant fiber optic gyroscope based on Kagome fiber},
author = {A. Ravaille and G. Feugnet and B. Debord and F. Gérôme and G. Humbert and F. Benabid and F. Bretenaker},
journal= {arXiv preprint arXiv:1812.04694},
year = {2019}
}