@inproceedings{2128d9e4e7df42eda321058d11bebcff,
title = "Analysis of fabrication error and optimization technique of λ/4 waveplate for fiber optical current transformer",
abstract = "The principle of fiber optical current transformer and the function of λ/4 wave plate are described in this paper. We propose and demonstrate three kinds of main fabrication errors of λ/4 wave plate, including fiber material error, axial angle error and length interception error. In order to reduce the errors above, an elliptical core polarization-maintaining fiber, which is relatively temperature-insensitive and has a long beat length 20 mm, is used as the wave plate fiber. And we build a set of all-fiber λ/4 wave plate fabrication platform utilizing polarization analyzer and optical microscope. Therefore, the excellent performance λ/4 wave plate (DOP<98\%, PER<0.2dB) was obtained with the fabrication platform. Experimental results of DC current measurement (100A\textasciitilde{}3000A) and temperature test (-40°C\textasciitilde{}85°C) show that the measurement accuracy of prototype with the fabricated λ/4 wave plate is better than 0.2S, which verified that the analysis of fabrication error and optimization technique of λ/4 wave plate in this paper can improves the performance of FOCT effectively.",
keywords = "Elliptical core polarization-maintaining fiber, Fiber optical current transformer, Phase delay, Polarization extinction ratio, λ/4 wave plate",
author = "Yongguang Wang and Guochen Wang and Boya Zhang and Wei Gao and Zhuo Wang",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE.; Advanced Sensor Systems and Applications XI 2021 ; Conference date: 10-10-2021 Through 12-10-2021",
year = "2021",
doi = "10.1117/12.2602392",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Zuyuan He and Gang-Ding Peng",
booktitle = "Advanced Sensor Systems and Applications XI",
address = "美国",
}