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

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.

[1]  Ian H. White,et al.  Single-Mode Fiber OTDR: Experiment and Theory , 1982 .

[2]  K Hotate,et al.  Effect of Rayleigh backscattering in an optical passive ring-resonator gyro. , 1984, Applied optics.

[3]  M. Kong,et al.  Waveguide-type optical passive ring resonator gyro using frequency modulation spectroscopy technique , 2014 .

[4]  Lishuang Feng,et al.  Reduction of backscattering noise in a resonator integrated optic gyro by double triangular phase modulation. , 2015, Applied optics.

[5]  K. Takiguchi,et al.  Adjustment-free method to eliminate the noise induced by the backscattering in an optical passive ring-resonator gyro , 1990, IEEE Photonics Technology Letters.

[6]  Chun-xi Zhang,et al.  Rayleigh backscatter noise in integrated optical resonance gyro , 2012 .

[7]  L. D. Tzeng,et al.  Performance evaluation of waveguide phase modulators for coherent systems at 1.3 and 1.5 µm , 1987 .

[8]  K Hotate,et al.  Drift of an optical fiber gyroscope caused by the Faraday effect: influence of the earth's magnetic field. , 1986, Applied optics.

[9]  Zhong-he Jin,et al.  Full investigation of the backscattering in resonator fiber optic gyro , 2011 .

[10]  Changkun Feng,et al.  Analysis and Optimization of Dynamic Performance for Resonant Integrated Optical Gyroscope , 2021, Journal of Lightwave Technology.

[12]  Zuyuan He,et al.  Reduction of Backscattering Induced Noise by Carrier Suppression in Waveguide-Type Optical Ring Resonator Gyro , 2011, Journal of Lightwave Technology.

[13]  Kazuo Hotate,et al.  Sensitivity improvement of waveguide-type optical passive ring resonator gyroscope by carrier suppression , 2009, International Conference on Optical Fibre Sensors.

[14]  Chengxiang Liu,et al.  Analysis of Resonance Asymmetry Phenomenon in Resonant Fiber Optic Gyro , 2018, Sensors.

[15]  Weihua Han,et al.  Progress of Waveguide Ring Resonators Used in Micro-Optical Gyroscopes , 2020 .

[16]  Dan Cardarelli,et al.  Experimental developments in the RFOG , 1991, Other Conferences.

[17]  Masataka Nakazawa,et al.  Rayleigh backscattering theory for single-mode optical fibers , 1983 .

[18]  C. Ciminelli,et al.  Optimized Design of Integrated Optical Angular Velocity Sensors Based on a Passive Ring Resonator , 2009, Journal of Lightwave Technology.

[19]  M. Lei,et al.  Limitation of rotation sensing in IORG by Rayleigh backscattering noise , 2011 .

[20]  Carlo Edoardo Campanella,et al.  Photonic technologies for angular velocity sensing , 2010 .