干涉型光纤陀螺中的偏振光干涉  

Interference of Polarized Light in Interferometric FOG

作　　者：梁志军[1] 谷云彪[1] 李德才[1] 

机构地区：[1]天津航海仪器研究所,天津300131

出　　处：《中国惯性技术学报》2004年第2期58-62,共5页Journal of Chinese Inertial Technology

摘　　要：针对采用质子交换式波导和全保偏光路的光纤陀螺,利用双波束干涉法将光纤环圈中存在的与偏振模式相关的干涉场进行了分析,推导出每种干涉场对主干涉波的幅度及相位扰动的表达式。在此基础上分析了一些关键参数对陀螺偏振噪声的影响,提出抑制光路中寄生偏振干涉场的建议。Interference of polarized light in optical fiber coil was analyzed by Dual Lightwave Interference Theory for FOG with PE waveguide and PM fiber. Expressions about amplitude and phase of the disturbed lightwave were individually deduced to every kind of interference. The relationship between polarization noise and important parameters were figured out and some advises about how to restrain this kind of noise in interferometric FOG were given.

关 键 词：干涉型光纤陀螺仪 偏振光干涉 数学模型 质子交换式波导 双波束干涉法 船舶导航 

分 类 号：U666.123[交通运输工程—船舶及航道工程]