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Proceedings Paper

Adaptive interferometry for high sensitivity optical fiber sensing
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Paper Abstract

We report on the use of an adaptive holographic interferometer, based on a liquid crystal light valve, to achieve phase shift measurements in an optical fiber. Owing to the physical mechanisms involved, the interferometer adapts itself to slow phase variations. As a consequence, it is possible to use a multimode fiber for sensing, which improves the sensitivity. Moreover, a distributed architecture relying on phase-OTDR principle is presented and a localization experiment is performed.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96340M (28 September 2015); doi: 10.1117/12.2193878
Show Author Affiliations
A. Peigné, Thales Underwater Systems SAS (France)
INLN, Univ. de Nice-Sophia Antipolis, CNRS (France)
U. Bortolozzo, INLN, Univ. de Nice-Sophia Antipolis, CNRS (France)
S. Residori, INLN, Univ. de Nice-Sophia Antipolis, CNRS (France)
S. Molin, Thales Research and Technology France (France)
D. Dolfi, Thales Research and Technology France (France)
J.-P. Huignard, Jphopto (France)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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