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Proceedings Paper

Experimental demonstration on 2.5m spatial resolution and 1oC temperature uncertainty over 74.6km BOTDA with combined Raman amplification and optical pulse coding
Author(s): Yun-Jiang Rao; Xin-Hong Jia; Kun Deng; Zi-Xin Yang; Liang Chang; Chao Zhang; Zeng-Ling Ran
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Paper Abstract

The combination of Raman amplification and optical pulse coding (OPC) is proposed to reduce the frequency uncertainty in long-distance BOTDA under higher spatial resolution. The experimental characterization of 74.6Km temperature sensing with measurement accuracy ~1oC under ~2.5m spatial resolution over the whole length of sensing fiber is demonstrated. The performance comparisons of BOTDA with purely Raman amplification and combined Raman amplification with OPC are also displayed.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77530O (17 May 2011); doi: 10.1117/12.884857
Show Author Affiliations
Yun-Jiang Rao, Univ. of Electronic Science and Technology of China (China)
Xin-Hong Jia, Univ. of Electronic Science and Technology of China (China)
Kun Deng, Univ. of Electronic Science and Technology of China (China)
Zi-Xin Yang, Univ. of Electronic Science and Technology of China (China)
Liang Chang, Univ. of Electronic Science and Technology of China (China)
Chao Zhang, Univ. of Electronic Science and Technology of China (China)
Zeng-Ling Ran, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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