器件的非理想化对光纤陀螺精度的影响

李冰; 唐尊伟; 娄淑琴; 尹国路

光电技术应用, 2010, 25 (4): 54, 网络出版: 2010-11-04

器件的非理想化对光纤陀螺精度的影响

Effect of Nonideal Optical Component on Measurement Accuracy of Open-loop Fiber Gyroscope

论文大纲

李冰 ¹唐尊伟 ²娄淑琴 ²尹国路 ²

作者单位

¹ 山东潍坊港华燃气有限公司，山东潍坊 261061

² 全光网络与现代通信网教育部重点实验室，北京 100044

光纤陀螺矩阵模型零漂光源偏振度对轴误差 fiber gyroscope matrix model zero bias drift polarization degree of optical source alignment errors

摘要

为了提高开环光纤陀螺的测量精度，研究了干涉式开环光纤陀螺系统中元器件的非理想化对陀螺精度的影响.根据光纤陀螺系统的结构特点，给出了陀螺系统不同元器件的矩阵模型，导出了开环陀螺的输出表达式，重点分析了光源偏振度和输出光功率波动、耦合器分光比波动以及系统中光纤尾纤熔接点对轴误差造成的偏振误差.研究结果表明，在诸多影响因素中，光源波动对陀螺系统的影响最大，耦合器分光比波动次之，熔接点对轴误差的影响最小.

Abstract

To improve the measurement accuracy of open-loop fiber gyroscopes, the effects of nonideal optical component on the measurement accuracy are investigated in detail. According to the structural feature, the Jones matrix models of different components in the fiber gyroscope are proposed and the intensity output of the fiber gyroscope is deduced with the methods of coherence matrix of partly polarized broadband source and transferring matrix theoretically. The polarization errors originating from the fluctuation of optical source power and polarization degree, the fluctuation of coupling ratio and alignment errors of the fiber fuse splice are also analyzed. Numerical results demonstrate that the fluctuation of optical source would bring the most distinguish effect on the measurement accuracy of open-loop fiber gyroscopes. The polarization errors originating from the fluctuation of alignment errors of the fiber fuse splice lay the weakest effect on the measurement accuracy.

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李冰, 唐尊伟, 娄淑琴, 尹国路. 器件的非理想化对光纤陀螺精度的影响[J]. 光电技术应用, 2010, 25(4): 54. LI Bing, TANG Zun-wei, LOU Shu-qin, YIN Guo-lu. Effect of Nonideal Optical Component on Measurement Accuracy of Open-loop Fiber Gyroscope[J]. Electro-Optic Technology Application, 2010, 25(4): 54.

器件的非理想化对光纤陀螺精度的影响

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