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Type: 
Journal
Description: 
We propose the use of standard multiwavelength Fabry–PÉrot (FP) lasers for distributed strain and temperature measurement in hybrid Raman- and Brillouin-based fiber-optic sensors. The multiple longitudinal modes of FP lasers allow for accurate spontaneous Raman scattering measurement and for simultaneous high-sensitivity coherent detection of the Brillouin frequency shift parameter for all longitudinal modes. Experimental results confirm great performance improvement in simultaneous strain and temperature measurement using a single optical fiber.
Publisher: 
IEEE
Publication date: 
29 Sep 2009
Authors: 

Gabriele Bolognini, Marcelo A Soto, Fabrizio Di Pasquale

Biblio References: 
Volume: 21 Issue: 20 Pages: 1523-1525
Origin: 
IEEE Photonics Technology Letters