混沌布里渊光相关域分析

Chaotic Brillouin optical correlation-domain analysis.

作者信息

Zhang Jianzhong, Zhang Mingtao, Zhang Mingjiang, Liu Yi, Feng Changkun, Wang Yahui, Wang Yuncai

出版信息

Opt Lett. 2018 Apr 15;43(8):1722-1725. doi: 10.1364/OL.43.001722.

DOI:10.1364/OL.43.001722

Abstract

We propose and experimentally demonstrate a chaotic Brillouin optical correlation-domain analysis system for distributed fiber sensing. The utilization of a chaotic laser with a low coherence state ensures high spatial resolution. The experimental results demonstrate a 4 cm spatial resolution over a 906 m measurement range. The uncertainty in the measurement of the local Brillouin frequency shift is ±1.2 MHz. The analysis of the expected spatial resolution and signal-to-noise ratio is also given.

摘要

我们提出并通过实验证明了一种用于分布式光纤传感的混沌布里渊光相关域分析系统。利用具有低相干态的混沌激光器可确保高空间分辨率。实验结果表明，在906米的测量范围内，空间分辨率为4厘米。本地布里渊频移测量的不确定度为±1.2兆赫。同时还给出了预期空间分辨率和信噪比的分析。