Temperature compensation technique for Bragg gratings in microstructured optical fibers for sensing applications

Minh Châu Phan Huy; Guillaume Laffont; Véronique Dewynter; Pierre Ferdinand; Dominique Pagnoux; Philippe Roy; Bernard Dussardier; Wilfried Blanc

doi:10.1117/12.738578

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2 July 2007 Temperature compensation technique for Bragg gratings in microstructured optical fibers for sensing applications

Minh Châu Phan Huy, Guillaume Laffont, Véronique Dewynter, Pierre Ferdinand, Dominique Pagnoux, Philippe Roy, Bernard Dussardier, Wilfried Blanc

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Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 661930 (2007) https://doi.org/10.1117/12.738578
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

The thermal drift of the characteristic wavelength of a Fiber Bragg Grating photowritten in the core of an 18-hole-microstructured fiber is significantly reduced by inserting a liquid of suitable refractive index into its holes. The maximum sensitivity is reduced, and the spectral range of variations is divided by a factor of 8, over a temperature range larger than 20°C. Such passive FBG temperature compensation technique is of great interest for applications involving accurate sensing free of thermal effects.

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Minh Châu Phan Huy, Guillaume Laffont, Véronique Dewynter, Pierre Ferdinand, Dominique Pagnoux, Philippe Roy, Bernard Dussardier, and Wilfried Blanc "Temperature compensation technique for Bragg gratings in microstructured optical fibers for sensing applications", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661930 (2 July 2007); https://doi.org/10.1117/12.738578

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