22 May 2013 Magnetic drift in single depolarizer interferometric fiber-optic gyroscopes induced by orthogonal magnetic field
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Abstract
We proposed a theory that an orthogonal magnetic field (OMF), vertical to the light propagating direction in fiber-optics, can induce a nonreciprocal 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.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Dengwei Zhang, Dengwei Zhang, Yuxiang Zhao, Yuxiang Zhao, Xiaowu Shu, Xiaowu Shu, Cheng Liu, Cheng Liu, Wenlan Fu, Wenlan Fu, Wenqing Zhou, Wenqing Zhou, } "Magnetic drift in single depolarizer interferometric fiber-optic gyroscopes induced by orthogonal magnetic field," Optical Engineering 52(5), 054403 (22 May 2013). https://doi.org/10.1117/1.OE.52.5.054403 . Submission:
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