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28 September 2015 Adaptive interferometry for high sensitivity optical fiber sensing
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96340M (2015) https://doi.org/10.1117/12.2193878
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Peigné, U. Bortolozzo, S. Residori, S. Molin, D. Dolfi, and J.-P. Huignard "Adaptive interferometry for high sensitivity optical fiber sensing", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96340M (28 September 2015); https://doi.org/10.1117/12.2193878
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