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Optical Engineering

Theoretical and experimental investigation of an 82-km-long distributed Brillouin fiber sensor based on double sideband modulated probe wave
Author(s): Zhisheng Yang; Xiaobin Hong; Jian Wu; Hongxiang Guo; Jintong Lin
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Paper Abstract

An 82-km sensing range Brillouin optical time-domain analysis distributed fiber sensor without systematic measurement error is proposed and first experimentally validated, in which the probe wave with two sidebands generates a dual gain-loss Brillouin interaction, giving rise to the remarkable suppressed pump depletion in long sensing range and a relatively narrow Brillouin gain spectrum. Both theoretical analysis and experimental results demonstrate that this technique is capable of accurate long-distance sensing. To the best of our knowledge, it is the simplest technique and does not require extra time for long-distance sensing (>50 km).

Paper Details

Date Published: 3 December 2012
PDF: 6 pages
Opt. Eng. 51(12) 124402 doi: 10.1117/1.OE.51.12.124402
Published in: Optical Engineering Volume 51, Issue 12
Show Author Affiliations
Zhisheng Yang, Beijing Univ. of Posts and Telecommunications (China)
Xiaobin Hong, Beijing Univ. of Posts and Telecommunications (China)
Jian Wu, Beijing Univ. of Posts and Telecommunications (China)
Hongxiang Guo, Beijing Univ. of Posts and Telecommunications (China)
Jintong Lin, Beijing Univ. of Posts and Telecommunications (China)


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