Optimized configuration for high resolution distributed sensing using Brillouin echoes

Stella Foaleng-Mafang; Jean-Charles Beugnot; Luc Thévenaz

doi:10.1117/12.835212

5 October 2009 Optimized configuration for high resolution distributed sensing using Brillouin echoes

Stella Foaleng-Mafang, Jean-Charles Beugnot, Luc Thévenaz

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75032C (2009) https://doi.org/10.1117/12.835212
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

A novel configuration has been developed to optimize the response of Brillouin echoes for distributed fibre sensing. Fully resolved measurements of the Brillouin frequency shift of a 5cm spot perturbation have been performed using a 500 ps (5cm) pulse width. The linewidth of the measured Brillouin gain spectrum remains comparable to the intrinsic linewidth for any pulse width. The high accuracy and inherent stability of the technique have been successfully verified.

Citation Download Citation

Stella Foaleng-Mafang, Jean-Charles Beugnot, and Luc Thévenaz "Optimized configuration for high resolution distributed sensing using Brillouin echoes", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75032C (5 October 2009); https://doi.org/10.1117/12.835212

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