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Proceedings Paper

Proposal and experiment of BOCDR: Brillouin optical correlation-domain reflectometry
Author(s): Yosuke Mizuno; Weiwen Zou; Zuyuan He; Kazuo Hotate
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Paper Abstract

We propose Brillouin optical correlation-domain reflectometry (BOCDR), which can measure the strain and/or temperature distribution along an optical fiber by controlling the interference of continuous lightwaves. In pulse-based conventional Brillouin optical time-domain reflectometry (BOTDR), it is difficult to achieve a spatial resolution less than 1 m in principle, and the measurement time is as long as 5-10 minutes. On the contrary, the continuous-wave-based BOCDR can exceed the limit of 1-m resolution, and realize much faster measurement and random access to measuring position. A 40-cm spatial resolution was experimentally demonstrated with 50-Hz sampling rate.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043M (16 May 2008); doi: 10.1117/12.785943
Show Author Affiliations
Yosuke Mizuno, Univ. of Tokyo (Japan)
Weiwen Zou, Univ. of Tokyo (Japan)
Zuyuan He, Univ. of Tokyo (Japan)
Kazuo Hotate, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors
David Sampson; Stephen Collins; Kyunghwan Oh; Ryozo Yamauchi, Editor(s)

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