Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on double-modulation scheme

Yosuke Mizuno; Zuyuan He; Kazuo Hotate

doi:10.1117/12.848688

14 October 2009 Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on double-modulation scheme

Yosuke Mizuno, Zuyuan He, Kazuo Hotate

Author Affiliations +

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75037X (2009) https://doi.org/10.1117/12.848688
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

We have demonstrated a double-modulation scheme to enlarge the measurement range of Brillouin optical correlationdomain reflectometry (BOCDR) for fiber-optic distributed strain sensing. In this scheme, the frequency of the laser output is simultaneously modulated with two different frequencies. A resolution of 27 cm was achieved with 1.5-km measurement range when a noise-floor compensation technique was used.

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Yosuke Mizuno, Zuyuan He, and Kazuo Hotate "Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on double-modulation scheme", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75037X (14 October 2009); https://doi.org/10.1117/12.848688

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