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 $\pm 1.2\mathrm{MHz}$. The analysis of the expected spatial resolution and signal-to-noise ratio is also given.

© 2018 Optical Society of America

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