全光纤电流互感器λ/4波片的研制  

Error Analysis of Quarter-waveplate for Fiber Optical Current Transducer

作　　者：惠菲[1] 崔晶[1] 左文龙[1] 张书颖[1] 

机构地区：[1]天津航海仪器研究所,天津300131

出　　处：《导航定位与授时》2016年第1期64-68,共5页Navigation Positioning and Timing

基　　金："十二五"船舶预研支撑技术项目-三轴光纤陀螺及系统技术研究(62101050801)

摘　　要：光纤λ/4波片的相位延迟量与对轴角度误差是光纤电流互感器最主要的误差源之一。研究通过琼斯矩阵分析法建立反射式光纤电流互感器的偏振光学模型,进而得到了相位延迟量与对轴角度误差和标度因数之间的关系,为误差补偿技术提供理论支持。并且进行了实际研制,使得1/4波片消光比可小于0.2d B。The phase delay and fusion alignment error of fiber optical quarter waveplate are the main reasons that makes the fiber optic current transducer （FOCT） instability. Based on the in-line Sagnac interferometer setup, we analyzed and established the Jones matrix model of FOCT in this paper. The relationship between the phase delay and alignment error with the scale factor of FOCT was linked, which makes further error compensation available. And through experimental practice, the extinction ratio that is less than 0. 2dB is developed.

关 键 词：λ/4波片 相位延迟量 光纤电流互感器 

分 类 号：U666.1[交通运输工程—船舶及航道工程]