Paper
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
Author Affiliations +
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.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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KEYWORDS
Spatial resolution

Signal detection

Signal to noise ratio

Temperature metrology

Fiber optics sensors

Acoustics

Analytical research

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