Abstract
Using simulations and theoretical analysis, we present an innovative readout technique that uses the change in a beat frequency signal for sensing rotation in the resonant fiber gyroscope with a “reflector.” Unlike traditional fiber optic gyros, this gyroscope uses an embedded reflecting element that deliberately couples the clockwise and counter-clockwise propagating waves for sensing rotation. Our analytical results predict increased immunity to the degrading effects of backscattering, Kerr nonlinearities, and ambient variations at an optimum nonreciprocal bias. Using just a few meters of fiber and without requiring a very narrow-linewidth source, sensitivities below 1 deg/h along with a dynamic range greater than are predicted. The technique has the potential to provide a cost-effective solution in the tactical grade.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Sumukh Nandan R, R. Gowrishankar, and Shailesh Srivastava
Appl. Opt. 58(31) 8589-8597 (2019)
Shuangxiang Zhao, Qingwen Liu, Yuanyuan Liu, Huilian Ma, and Zuyuan He
Photon. Res. 10(2) 542-549 (2022)
Alexia Ravaille, Gilles Feugnet, Benoît Debord, Frédéric Gérôme, Fetah Benabid, and Fabien Bretenaker
Appl. Opt. 58(9) 2198-2204 (2019)