FOCT中旋转光纤的Mueller矩阵模型  

Mueller matrix model of spun fiber for FOCT

作　　者：胡浩亮 黄俊昌 黄宇豪 夏历[2] 余佶成 Hu Haoliang;Huang Junchang;Huang Yuhao;Xia Li;Yu Jicheng(China Electric Power Research Institute Co.Ltd,Wuhan 430074,China;School of Optical and Electronic lnformation,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中国电力科学研究院有限公司武汉分院,武汉430074 [2]华中科技大学光学与电子信息学院,武汉430074

出　　处：《电子测量技术》2020年第16期94-98,共5页Electronic Measurement Technology

基　　金：国家电网邮箱公司科技项目(52182018000F)资助。

摘　　要：针对目前光纤电流互感器(FOCT)所用旋转光纤2种模型的不足,采用微元法的思想提出了一种新的旋转光纤Mueller矩阵模型,并进行了实验验证。首先,采用微元法推导了旋转光纤Mueller矩阵模型,该模型指出,旋转光纤是一种椭圆双折射器件,其椭圆率与旋转率密切相关。然后,通过理论推导和软件仿真证明了旋转率从无到有、从小到大的变化过程中,光纤中的线性双折射将逐步地演化为圆双折射。最后,设计了偏振态随旋转率变化的动态监测实验系统,进一步证明了旋转光纤Mueller矩阵模型的正确性。Considering the shortcomings of the two existing models of spun fiber for FOCT, a new spun fiber Mueller matrix model is proposed by using differential element method, and then experimentally verified. First of all, the differential element method is used to derive the spun fiber Mueller matrix model. The model indicates that the spun fiber is an elliptical birefringence device whose ellipticity is closely related to the rotating rate. Then, theoretical derivation and software simulation prove that the linear birefringence in the fiber will gradually evolve to circular birefringence while the rotating rate increase. Finally, the dynamic monitoring experiment of the polarization state with the rotating rate is designed, and the correctness of the spun fiber Mueller matrix model is proved.

关 键 词：光纤电流互感器 旋转光纤 MUELLER矩阵 椭圆双折射 

分 类 号：O436[机械工程—光学工程]