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Proceedings Paper

Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme
Author(s): Kazuo Hotate; Hiroshi Arai
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Paper Abstract

We propose a method to enlarge the measurement range for Brillouin Optical Correlation Domain Analysis system simplified with time-division pump-probe generation scheme. In this system, the pump and probe lightwaves, which are modulated in frequency with a sinusoidal waveform to localize the stimulated Brillouin scattering periodically, are additionally gated temporally to select only one localized position. We successfully measured distribution of fiber Brillouin gain spectrum over 250m measurement range with 8cm spatial resolution.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623707
Show Author Affiliations
Kazuo Hotate, The Univ. of Tokyo (Japan)
Hiroshi Arai, 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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