Reduction of Rayleigh backscattering noise by carrier suppression in resonator integrated optic gyroscopes

Xuebao Kuai; Lei Wei; Yuming He; Zuo Feng; Fuhua Yang; Zhaofeng Li; Xiaodong Wang

doi:10.1117/12.2605460

1 November 2021 Reduction of Rayleigh backscattering noise by carrier suppression in resonator integrated optic gyroscopes

Xuebao Kuai, Lei Wei, Yuming He, Zuo Feng, Fuhua Yang, Zhaofeng Li, Xiaodong Wang

Author Affiliations +

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120571S (2021) https://doi.org/10.1117/12.2605460
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

Rayleigh backscattering noise in resonator integrated optic gyroscopes is researched both theoretically and experimentally. Characteristics of Rayleigh backscattering noise in the resonator of silicon nitride on silicon substrate are formulized, and the static state and dynamic state models are constructed. The relationship between the optical signal and backscattering noise is simulated, and the affection between the interference signal of backscattering noise and the reverse optical signal is also calculated. The influence of backscattering noise on the performance of the resonator is analyzed. The method of inflicting two different waveforms to the integrated optical modulator is presented. The experimental results show that triangular wave modulation can effectively suppress backscattering noise in resonator integrated optic gyroscopes.

Citation Download Citation

Xuebao Kuai, Lei Wei, Yuming He, Zuo Feng, Fuhua Yang, Zhaofeng Li, and Xiaodong Wang "Reduction of Rayleigh backscattering noise by carrier suppression in resonator integrated optic gyroscopes", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120571S (1 November 2021); https://doi.org/10.1117/12.2605460

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KEYWORDS

Modulation

Backscatter

Gyroscopes

Resonators

Signal detection

Waveguides

Demodulation

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