Optimization of Reciprocal Modulation Parameters in Resonant Fiber Optic Gyro

被引：0
|
作者：
Zou, Kang [1 ]
Wang, Lei [1 ]
Chen, Kan [1 ]
Bi, Ran [1 ]
Shu, Xiaowu [1 ]
机构：
[1] Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2021年 / 39卷 / 17期
关键词：
Modulation; Backscatter; Frequency modulation; Demodulation; Resonant frequency; Phase modulation; Optical fiber sensors; Backscattering noise; optimal modulation parameters; reciprocal modulation-demodulation technique; resonant fiber optic gyro; PHASE MODULATION; GYROSCOPE;
D O I：
10.1109/JLT.2021.3090989
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The resonant fiber optic gyro (RFOG) based on reciprocal modulation-demodulation technique is introduced and the influence of high modulation frequency on resonance and demodulation output is analyzed. The expression of backscattering output in resonant cavity is deduced and the experimental device is built to measure the backscattering coefficient. The demodulation model considering backscattering noise is established under reciprocal sinusoidal modulation, and the optimal modulation parameters are obtained by simulation. Finally, the RFOG system is set up. The results show that the detection sensitivity is improved by 19% with the optimal modulation parameters and the system bias stability improves from 0.067 degrees/s to 0.023 degrees/s.
引用
收藏
页码：5669 / 5675
页数：7
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