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Proceedings Paper

BOCDA fiber optic distributed strain sensing system with a polarization diversity scheme for enlargement of measurement range
Author(s): Kazuo Hotate; Koji Abe
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Paper Abstract

We have developed Brillouin Optical Correlation Domain Analysis (BOCDA) for distributed strain measurement. BOCDA can achieve distributed strain measurement by controlling a correlation between pump and probe lightwave, with excellent spatial resolution and sampling rate compared with conventional pulse-based techniques. In this paper, we propose a scheme for polarization diversity to reduce data fluctuation by polarization state change of pump and probe lightwave in order to realize enlargement of measurement range. Stable distributed strain measurement is demonstrated along a 50m measurement range.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624279
Show Author Affiliations
Kazuo Hotate, The Univ. of Tokyo (Japan)
Koji Abe, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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