浙江大学光电系现代光学仪器国家重点实验室, 浙江 杭州 310027
提出了与陀螺敏感环平面垂直的正交磁场作用下保偏光纤(PMF)陀螺产生非互易相位差(NPD)的理论，建立了相应的数学模型，并对该模型进行仿真分析和实验验证。正交磁致非互易相位差源于光纤的弯曲，与光纤环的直径、光纤直径、光纤长度及正交磁场大小等参数密切相关。理论、仿真和实验结果表明，光纤环尾纤与集成光学元件(IOC)尾纤0°熔接的保偏光纤陀螺的正交磁漂移在一定范围内随机分布，而45°熔接的保偏光纤陀螺的正交磁漂移比较稳定，其正交磁漂移与正交磁场大小呈线性关系。
光纤光学 保偏光纤陀螺 正交磁漂移 熔接角 非互易相位差 保偏光纤环
Shanghai Institute of Optics and Fine Mechanics, CAS, P. R. China
Author Affiliations
Abstract
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
We describe a new method for angular displacement measurements that is based on a Fabry-Perot interferometer. A measurement accuracy of 10^(-8) rad is obtained by use of the sinusoidal phase modulating interferometry. Another Fabry-Perot interferometer is used to obtain the key initial angle of incidence.
120.3180 interferometry 070.6020 interferometry Chinese Optics Letters
2003, 1(8): 08459
