A novel dual-core fiber-optic gyroscope with independent rotation rate measurements in different cores of a dual-core optical fiber
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Abstract:
We introduce an all-fiber stationary phase shifter for a fiber-optic gyroscope (FOG) which simultaneously provides phase shifts of opposite signs in different cores of the dual-core optical fiber. We propose a new dual-core fiber-optic gyroscope (DCFOG) in which different cores of the dual-core optical fiber provide independent rotation rate measurements. The device enables implementation of a differential scheme, which ensures the stability of the measured phase shift. As a computer simulation result, the accuracy of the rotation rate sensing is increased by up to 10 times at typical noise levels.
Emil A. Milikov, Viacheslav V. Zemlyakov, Pavel S. Anisimov, GAO Jiexing. A novel dual-core fiber-optic gyroscope with independent rotation rate measurements in different cores of a dual-core optical fiber[J]. Optoelectronics Letters,2024,20(11):671-675