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Proceedings Paper

157km BOTDA with pulse coding and image processing
Author(s): Xianyang Qian; Zinan Wang; Song Wang; Naitian Xue; Wei Sun; Li Zhang; Bin Zhang; Yunjiang Rao
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Paper Abstract

A repeater-less Brillouin optical time-domain analyzer (BOTDA) with 157.68km sensing range is demonstrated, using the combination of random fiber laser Raman pumping and low-noise laser-diode-Raman pumping. With optical pulse coding (OPC) and Non Local Means (NLM) image processing, temperature sensing with ±0.70°C uncertainty and 8m spatial resolution is experimentally demonstrated. The image processing approach has been proved to be compatible with OPC, and it further increases the figure-of-merit (FoM) of the system by 57%.

Paper Details

Date Published: 30 May 2016
PDF: 4 pages
Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99162S (30 May 2016); doi: 10.1117/12.2236441
Show Author Affiliations
Xianyang Qian, Univ. of Electronic Science and Technology of China (China)
Zinan Wang, Univ. of Electronic Science and Technology of China (China)
Song Wang, Univ. of Electronic Science and Technology of China (China)
Naitian Xue, Univ. of Electronic Science and Technology of China (China)
Wei Sun, Univ. of Electronic Science and Technology of China (China)
Li Zhang, Univ. of Electronic Science and Technology of China (China)
Bin Zhang, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9916:
Sixth European Workshop on Optical Fibre Sensors
Elfed Lewis, Editor(s)

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