实现光纤白光干涉仪的OPD超分辨率

2022 20th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2022-08-12 DOI:10.1109/ICOCN55511.2022.9901072

Hou Chengcheng, Zheng Guangjin, Zhao Yao, Han Zhengying, Zheng Xiangliang, Shang Fuzhou, Wang Zihan, Gao Yesheng

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引用次数: 0

摘要

提出了一种对光纤白光干涉仪采集的数据进行处理以实现光程差超分辨的数值方法。众所周知，干涉信号的分辨率取决于光源的相干长度。当OPD小于相干长度时，信号将发生重叠。重叠引起的面积变化与OPD有关。给出了OPD与待测信号面积大小的关系。实验结果表明，获得分辨率超过光源相干长度3倍的OPD是可能的。本文对距离的绝对测量是有益的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Achieving OPD super-resolution of the fiber-optic white light interferometer

A numerical method of processing data obtained by the fiber-optic white light interferometer to achieve Optical path difference (OPD) super-resolution is presented. It is well known that the resolution of interference signal depends on the coherence length of light source. Signal will be overlapped when the OPD is less than the coherence length. The area variation caused by overlapped is related to the OPD. The relationship between OPD and the size of signal area to be measured are given. The experiment results demonstrate the possibility of obtaining OPD with a resolution exceeding the coherence length of light source by 3 times. We believe this paper is benefit to absolute measurement of distance.

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来源期刊

2022 20th International Conference on Optical Communications and Networks (ICOCN)

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