Proposal and simulation of differential double-pulse pair Brillouin optical time-domain analysis

Jianguan Tang; Wenping Luo; Beiqing Chen; Huiyong Guo; Cui Zhang

doi:10.1117/12.2034162

15 October 2013 Proposal and simulation of differential double-pulse pair Brillouin optical time-domain analysis

Jianguan Tang, Wenping Luo, Beiqing Chen, Huiyong Guo, Cui Zhang

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892418 (2013) https://doi.org/10.1117/12.2034162
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

A differential double-pulse pair Brillouin optical time-domain analysis (DDP-BOTDA) combined with the double-pulsed technique and the differential pulse-width pair technique is proposed and simulated to detect small temperature and strain changes. Using a symmetrical double-pulse pair, the system can detect small Brillouin shift with high spatial resolution and large dynamic range. Sub-meter spatial resolution is decided by the difference between the pulse-width and the peak and valley of the spectrum which is derived from differential pump depletion signals, and detectable Brillouin shift is less than 1 MHz.

Citation Download Citation

Jianguan Tang, Wenping Luo, Beiqing Chen, Huiyong Guo, and Cui Zhang "Proposal and simulation of differential double-pulse pair Brillouin optical time-domain analysis", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892418 (15 October 2013); https://doi.org/10.1117/12.2034162

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