Distributed fiber sensing using Brillouin echoes

Luc Thévenaz; Stella Foaleng Mafang

doi:10.1117/12.786283

16 May 2008 Distributed fiber sensing using Brillouin echoes

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70043N (2008) https://doi.org/10.1117/12.786283
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

A simple physical description of the nonlinear optical interaction based on Brillouin echoes is presented. This technique makes potentially possible distributed Brillouin sensing down to centimeter spatial resolution while preserving the narrowband feature of the natural Brillouin gain spectrum. Experimental conditions for the generation of Brillouin echoes are described and demonstrations of distributed measurements using a 1 ns (10 cm) pulse are presented.

Citation Download Citation

Luc Thévenaz and Stella Foaleng Mafang "Distributed fiber sensing using Brillouin echoes", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043N (16 May 2008); https://doi.org/10.1117/12.786283

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