Sagnac式光纤电流互感器的光波偏振特性建模及误差特性分析

Sagnac式光纤电流互感器要求光波具有特定的偏振特性。起偏器、波片、保偏光纤主轴熔接等因素均会引起光波偏振误差,非理想的偏振光波导致互感器干涉信号串扰。围绕Sagnac式光纤电流互感器偏振误差特性,采用琼斯矩阵建立光纤电流互感器光波偏振模型,分析光纤电流互感器中线偏振态及圆偏振态演变过程;以光纤电流互感器光波偏振模型为基础,研究光波偏振器消光比、保偏光纤主轴熔接角以及波片相位延迟角对光纤电流互感器光波偏振及性能的影响。...

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Bibliographic Details
Published in电测与仪表 Vol. 53; no. 16; pp. 75 - 79
Main Author 孙健 王立辉
Format Journal Article
LanguageChinese
Published 江苏省电力公司电力科学研究院,南京,211103%东南大学 仪器科学与工程学院,南京,210096 2016
Subjects
偏振态
偏振误差
光纤电流互感器
非互易相位
光纤电流互感器
nonreciprocal phase shift
optic polarization state
偏振误差
偏振态
非互易相位
fiber optic current transformer
polarization error
Online AccessGet full text
ISSN1001-1390

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Summary:Sagnac式光纤电流互感器要求光波具有特定的偏振特性。起偏器、波片、保偏光纤主轴熔接等因素均会引起光波偏振误差,非理想的偏振光波导致互感器干涉信号串扰。围绕Sagnac式光纤电流互感器偏振误差特性,采用琼斯矩阵建立光纤电流互感器光波偏振模型,分析光纤电流互感器中线偏振态及圆偏振态演变过程;以光纤电流互感器光波偏振模型为基础,研究光波偏振器消光比、保偏光纤主轴熔接角以及波片相位延迟角对光纤电流互感器光波偏振及性能的影响。
Bibliography:Sun Jian1, Wang Lihuiz （1. Jiangsu Electrical Power Company Research Institute, Nanjing 211103, China. 2. School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China）
Optic polarization states of sensing light wave in Sagnac fiber optic current transformer are limited. However, several factors including polarizer, quarter-wave retarder, splice angular, and so on will induce optic polarization error, and non-ideal polarized light waves will cause the interierence signal crosstalk in transtormer, focused on char- acteristics of optical polarization error in fiber optic current transformer, we build optical polarization error models by using Jones matrix, then, analyze the evolution process of linear optic polarization state and circular optic polarization state in Sagnac fiber optic current transformer. Based on models of polarization state in transformer, performance we investigate the influence of several main error factors on optical theoretically, including extinction ratio in p
ISSN:1001-1390