摘要
首次在理论与实验两方面研究了闭环退偏干涉型光纤陀螺刻度因数的非线性误差,闭环锯齿波相位调制器对两个偏振光分量的不同调制深度是其非线性误差的原因之一。提出了降低闭环退偏干涉型光纤陀螺刻度因数非线性误差的方法。
The nonlinear error of scale factor of depolarized fiber gyroscope（D-FOG） with closed-loop has been investi- gated theoretically and experimentally for the first time. Our results show that the nonlinear error of depolarized FOG with standard single-mode fiber coil, which is larger than that of polarization-maintaining FOG, is caused by the differ- ent modulated depths of serrodyne for the two states of polarization. Practical methods to reduce nonlinear error of de- polarized FOG are suggested in this paper.
出处
《激光与红外》
CAS
CSCD
北大核心
2013年第3期286-290,共5页
Laser & Infrared
关键词
光纤陀螺
刻度因数
闭环
退偏器
单模光纤
fiber optic gyroscope （ FOG ）
scale factor
closed-loop
depolarization
single mode fiber
