Experimental demonstration on 2.5m spatial resolution and 1oC temperature uncertainty over 74.6km BOTDA with combined Raman amplification and optical pulse coding

Yun-Jiang Rao; Xin-Hong Jia; Kun Deng; Zi-Xin Yang; Liang Chang; Chao Zhang; Zeng-Ling Ran

doi:10.1117/12.884857

17 May 2011 Experimental demonstration on 2.5m spatial resolution and 1oC temperature uncertainty over 74.6km BOTDA with combined Raman amplification and optical pulse coding

Yun-Jiang Rao, Xin-Hong Jia, Kun Deng, Zi-Xin Yang, Liang Chang, Chao Zhang, Zeng-Ling Ran

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77530O (2011) https://doi.org/10.1117/12.884857
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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.

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Yun-Jiang Rao, Xin-Hong Jia, Kun Deng, Zi-Xin Yang, Liang Chang, Chao Zhang, and Zeng-Ling Ran "Experimental demonstration on 2.5m spatial resolution and 1oC temperature uncertainty over 74.6km BOTDA with combined Raman amplification and optical pulse coding", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77530O (17 May 2011); https://doi.org/10.1117/12.884857

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