Cross-coupling drift between magnetic field and temperature in depolarized interferometric fiber optic gyroscope

被引：6

作者：

Chen, L. ^{[1
]}

Zhao, Y. X. ^{[2
]}

Yang, M. F. ^{[3
]}

Zhang, D. W. ^{[1
]}

Shu, X. W. ^{[1
]}

Liu, C. ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China

[2] Beijing Syst Design Inst Mech Elect Engn, Beijing 100854, Peoples R China

[3] Beijing Inst Elect Syst Engn, Beijing 100854, Peoples R China

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 05期

基金：

中国国家自然科学基金;

关键词：

POLARIZATION; BIREFRINGENCE; REDUCTION; GYRO;

D O I：

10.1364/OE.27.006003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a theory of cross-coupling drift in depolarized interferometric fiber optic gyroscopes (D-IFOGs) under the joint influence of magnetic field and temperature. The magnetic field and temperature cross-coupling drift (MTCD) originates from the interaction of the nonreciprocal circular birefringence produced by the magnetic field, the thermal stress birefringence from the varying temperature, and the inherent residual birefringence in the fiber coil. The MTCD is much greater than the sum of the individual drifts induced by magnetic field and temperature. We established a relevant theoretical model and carried out numerical simulations, and verified the results experimentally. For a typical D-IFOG, the experimental results showed a cross-coupling degree exceeding 170% when the temperature varied from -20 degrees C to 60 degrees C, as predicted in the simulations. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：6003 / 6011

页数：9

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