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Proceedings Paper

Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on double-modulation scheme
Author(s): Yosuke Mizuno; Zuyuan He; Kazuo Hotate
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Paper 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.

Paper Details

Date Published: 14 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75037X (14 October 2009); doi: 10.1117/12.848688
Show Author Affiliations
Yosuke Mizuno, The Univ. of Tokyo (Japan)
Zuyuan He, The Univ. of Tokyo (Japan)
Kazuo Hotate, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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