全光纤电流传感器中的信号检测方案与处理方法及光纤中双折射效应的影响

Research on the Signal Detecting and Processing of All-fiber Current Transducer and the Influence of Birefringence in Optical Fiber

本文首先分析了全光纤电流传感器中两种信号检测方案及处理方法;当线偏振光的偏振面旋转角度远小于1弧度时,可得出两种方案的结果符合得较好。分析了光纤中线性双折射对系统性能和灵敏度的影响并归纳了解决的方法。

In this paper the principles of two schemes of signal detecting and processing of all-fiber current transducer are analysized. The results of the two methods are in good agreement when the rotation angle the polarized plane of the linearly polarized light is far less than 1 radian. The influence on the performance and the degree of sensitivity of the all-fiber current transducer of linear birefingence in optical fiber is analyzed and some resolutions are concluded in the last part of the paper.