Theoretical and experimental investigation of an 82-km-long distributed Brillouin fiber sensor based on double sideband modulated probe wave

Zhisheng Yang; Xiaobin Hong; Jian Wu; Hongxiang Guo; Jintong Lin

doi:10.1117/1.OE.51.12.124402

3 December 2012 Theoretical and experimental investigation of an 82-km-long distributed Brillouin fiber sensor based on double sideband modulated probe wave

Zhisheng Yang, Xiaobin Hong, Jian Wu, Hongxiang Guo, Jintong Lin

Author Affiliations +

Funded by: State Key Lab of Information Photonics and Optical Communications

Optical Engineering, Vol. 51, Issue 12, 124402 (December 2012). https://doi.org/10.1117/1.OE.51.12.124402

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).

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Zhisheng Yang, Xiaobin Hong, Jian Wu, Hongxiang Guo, and Jintong Lin "Theoretical and experimental investigation of an 82-km-long distributed Brillouin fiber sensor based on double sideband modulated probe wave," Optical Engineering 51(12), 124402 (3 December 2012). https://doi.org/10.1117/1.OE.51.12.124402

Published: 3 December 2012

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