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Proceedings Paper

142.2km BOTDA based on ultra-long fiber laser with a ring cavity
Author(s): Xin-Hong Jia; Yunjiang Rao; Zi-Nan Wang; Wei-Li Zhang; Cheng-Xu Yuan; Xiao-Dong Yan; Jin Li; Han Wu; Ye-Yu Zhu; Fei Peng
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Paper Abstract

A novel distributed Raman amplification (DRA) scheme based on ultra-long fiber laser (UL-FL) pumping with a ring cavity rather than a linear cavity is proposed and demonstrated, for the first time. As a typical application of the proposed configuration, ultra-long-distance distributed sensing with Brillouin optical time-domain analysis (BOTDA) over 142.2km fiber with 5m spatial resolution and ± 1.5℃ temperature uncertainty is achieved, without any repeater, for the first time. The key point for the significant performance improvement is the system could offer both of uniform gain distribution and considerably suppressed pump-probe relative intensity noise (RIN) transfer, by optimized design of system structure and parameters.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89241A (15 October 2013); doi: 10.1117/12.2034578
Show Author Affiliations
Xin-Hong Jia, Univ. of Electronic Science and Technology of China (China)
Sichuan Normal Univ. (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)
Zi-Nan Wang, Univ. of Electronic Science and Technology of China (China)
Wei-Li Zhang, Univ. of Electronic Science and Technology of China (China)
Cheng-Xu Yuan, Univ. of Electronic Science and Technology of China (China)
Xiao-Dong Yan, Univ. of Electronic Science and Technology of China (China)
Jin Li, Univ. of Electronic Science and Technology of China (China)
Han Wu, Univ. of Electronic Science and Technology of China (China)
Ye-Yu Zhu, Univ. of Electronic Science and Technology of China (China)
Fei Peng, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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