Residual amplitude modulation induced error in resonant micro-optic gyroscope

被引：0
|
作者：
Liu, Shuang
Liu, Lu
Ma, Huilian [1 ]
Jin, Zhonghe
机构：
[1] Zhejiang Univ, Sch Aeronaut & Astronaut, Hangzhou 310027, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2023年 / 529卷
关键词：
Resonant micro-optic gyroscope; Residual amplitude modulation; Separate-phase-modulation; FREQUENCY-MODULATION; FIBEROPTIC GYRO; OPTIC GYRO; SPECTROSCOPY; COMPENSATION; SUPPRESSION;
D O I：
10.1016/j.optcom.2022.129061
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A universal expression is proposed for evaluating the residual amplitude modulation (RAM) in a phase modulator. The different effects of the interference and linear terms of the RAM on the resonant micro-optic gyroscope (RMOG) are analyzed. It is found that the effect of RAM depends on the magnitude of RAM itself and the phase component. A theoretical model is then developed to calculate the RAM induced bias error in the RMOG. Finally, a technique for suppression of RAM is proposed and demonstrated, and the bias error of the separate-phase-modulation RMOG is successfully eliminated.
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页数：7
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