1’000’000 resolved points along a Brillouin distributed fibre sensor

Andrey Denisov; Marcelo A. Soto; Luc Thévenaz

doi:10.1117/12.2071272

2 June 2014 1’000’000 resolved points along a Brillouin distributed fibre sensor

Andrey Denisov, Marcelo A. Soto, Luc Thévenaz

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157D2 (2014) https://doi.org/10.1117/12.2071272
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

The challenge to resolve a record of one million points along a single optical fibre is demonstrated using a Brillouin distributed fibre sensor. The proposed system is based on a phase-correlation technique combined with a temporal pump gating, making possible to detect a 14 mm-long hot-spot located at the end of a 17.5 km-long fibre. This corresponds to an increase by one order of magnitude in the number of points that a single system has resolved, representing a major breakthrough in the field. Specific issues arising when resolving such a large number of points are discussed.

Citation Download Citation

Andrey Denisov, Marcelo A. Soto, and Luc Thévenaz "1’000’000 resolved points along a Brillouin distributed fibre sensor", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157D2 (2 June 2014); https://doi.org/10.1117/12.2071272

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