Magnetic drift in single depolarizer interferometric fiber-optic gyroscopes induced by orthogonal magnetic field

被引：13
|
作者：
Zhang, Dengwei [1 ]
Zhao, Yuxiang [1 ]
Shu, Xiaowu [1 ]
Liu, Cheng [1 ]
Fu, Wenlan [2 ]
Zhou, Wenqing [3 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang E Strong Commun Technol Co Ltd, Hangzhou 310027, Zhejiang, Peoples R China
[3] Zhejiang Prov Inst Metrol, Hangzhou 310027, Zhejiang, Peoples R China
来源：
OPTICAL ENGINEERING | 2013年 / 52卷 / 05期
基金：
中国国家自然科学基金;
关键词：
orthogonal magnetic drift; single-mode fiber coil; single-depolarizer interferometric fiber-optic gyroscope; nonreciprocity; depolarizer; NONRECIPROCAL PHASE-SHIFT; FIBERS;
D O I：
10.1117/1.OE.52.5.054403
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We proposed a theory that an orthogonal magnetic field (OMF), vertical to the light propagating direction in fiber-optics, can induce a non-reciprocal phase difference (NPD) in single depolarizer interferometric fiber-optic gyroscopes (SD-IFOGs). The relational mathematical model is established. The theoretical simulation and experimental results show that the orthogonal magnetic drift in the SD-IFOG, randomly distributed within a certain range, is independent of the incident angle on the depolarizer side but closely related to that on another side of the fiber coil. By shifting the incident angle on the nondepolarizer side, the OMF induced NPD, in the SD-IFOG, varies accordingly around zero point. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：5
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