Simple distributed fiber sensor based on Brillouin gain spectrum analysis

Marc Niklès(Swiss Federal Institute of Metrology), Luc Thévenaz(Swiss Federal Institute of Metrology), Philippe A. Robert(Swiss Federal Institute of Metrology)
Optics Letters
May 15, 1996
10.1364/ol.21.000758
Cited by 443Open Access
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Abstract

A novel configuration of a distributed fiber sensor by Brillouin gain analysis has been developed for temperature and strain monitoring. It uses a single laser source, and the required light signals are all generated with an electro-optic modulator, resulting in high stability and excellent reliability of the measuring setup. Measurement of the induced strain in a wound fiber is presented as a demonstration of the system performance.

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