FBG temperature sensor based on the measurement of the reflected signal polarization properties

Christophe Caucheteur; Marc Wuilpart; Karima Chah; Frédéric Lhommé; Michel Blondel; Patrice Mégret

doi:10.1117/12.567380

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16 November 2004 FBG temperature sensor based on the measurement of the reflected signal polarization properties

Christophe Caucheteur, Marc Wuilpart, Karima Chah, Frédéric Lhommé, Michel Blondel, Patrice Mégret

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Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.567380
Event: Photonics North, 2004, Ottawa, Ontario, Canada

Abstract

We analyze the polarization properties of uniform fiber Bragg gratings written into polarization maintaining fibers by studying the evolution with wavelength of the normalized Stokes parameters and the degree of polarization for both the reflected and transmitted signals. Theoretical expressions are derived for the Stokes parameters. Numerical simulations and experimental results are also reported. We demonstrate the possible realization of a sensor using the information contained in the evolution of teh degree of polarization in reflection. This new demodulation technique has been experimentally tested with temperature sensors.

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Christophe Caucheteur, Marc Wuilpart, Karima Chah, Frédéric Lhommé, Michel Blondel, and Patrice Mégret "FBG temperature sensor based on the measurement of the reflected signal polarization properties", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.567380

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