Distributed Optical -Fibre Sensors Based On Counter-Propagating Beams And Non-Linear Interactions

A. J. Rogers

doi:10.1117/12.949287

23 February 1989 Distributed Optical -Fibre Sensors Based On Counter-Propagating Beams And Non-Linear Interactions

A. J. Rogers

Proceedings Volume 1011, Fiber Optic Sensors III; (1989) https://doi.org/10.1117/12.949287
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Distributed optical-fibre measurement sensors offer many advantages for industrial use. Most systems which have been studied so far rely on OTDR techniques, where the spatial information on the measurand distribution is obtained via the time resolution of the light backscattered from a pulse propagating in the fibre. An alternative approach is to extract the spatial information from forward-scattered light by allowing counter-propagating light waves to interact non-linearly in the fibre. This might occur through pulse/CW or pulse/pulse interactions. This approach offers possibilities for significant improvements in spatial resolution and sensitivity for these systems.

Citation Download Citation

A. J. Rogers "Distributed Optical -Fibre Sensors Based On Counter-Propagating Beams And Non-Linear Interactions", Proc. SPIE 1011, Fiber Optic Sensors III, (23 February 1989); https://doi.org/10.1117/12.949287

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