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Proceedings Paper

L-BOFDA: a new sensor technique for distributed Brillouin sensing
Author(s): Aleksander Wosniok; Yosuke Mizuno; Katerina Krebber; Kentaro Nakamura
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Paper Abstract

We propose a new scheme of Brillouin optical frequency-domain analysis (BOFDA) for distributed fiber-optic strain and temperature sensing, named linear-configured BOFDA (L-BOFDA). In conventional loop-configured BOFDA, light injection into both ends of a fiber under test (FUT) is needed for counter-propagation of pump and probe waves. In contrast, in L-BOFDA, pump and probe waves are injected into the same end of an FUT, and the probe wave Fresnelreflected (or mirror-reflected) at the other end of the FUT is exploited; thus, one-end access is feasible. We show proof-of-concept results of distributed strain measurement in a silica single-mode fiber with L-BOFDA, and discuss the signal-to-noise ratio degradation and the benefit in developing distributed Brillouin sensors based on polymer optical fibers.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 879431 (20 May 2013); doi: 10.1117/12.2025378
Show Author Affiliations
Aleksander Wosniok, BAM Federal Institute for Materials Research and Testing (Germany)
Yosuke Mizuno, Tokyo Institute of Technology (Japan)
Katerina Krebber, BAM Federal Institute for Materials Research and Testing (Germany)
Kentaro Nakamura, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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