Drift suppression in a dual-polarization fiber optic gyroscope caused by the Faraday effect
Drift suppression in a dual-polarization fiber optic gyroscope caused by the Faraday effect
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DOI：
10.1016/j.optcom.2017.03.030
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发表时间：
2017-07-01
影响因子：
2.4
通讯作者：
Yang, Hanrui
中科院分区：
文献类型：
--
作者：
Liu, Pan;Li, Xuyou;Yang, Hanrui
对双偏振干涉光纤陀螺仪 (IFOG) 中法拉第效应引起的漂移进行了研究。理论分析和实验结果均表明，保偏光纤两个正交偏振方向的法拉第效应相位漂移总是具有相反的极性，可以得到有效补偿。当两路正交偏振光波的干涉信号相加时，IFOG的偏置稳定性显着提高。这项研究有望减少法拉第效应引起的 IFOG 漂移。
An investigation of the drift caused by the Faraday effect in a dual-polarization interferometric fiber optic gyroscope (IFOG) is presented. Both theoretical analysis and experimental results indicate that the Faraday effect phase drifts in two orthogonal polarizations of polarization-maintaining fiber always have opposite polarities that can be compensated effectively. When the interference signals of the two orthogonal polarized light waves are added up, the bias stability of the IFOG is improved significantly. This study is promising for reducing the drift of IFOG caused by the Faraday effect.