Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture

Moustafa Remouche; Rabah Mokdad; Moktar Lahrashe; Ayoub Chakari; Patrick P. Meyrueis

doi:10.1117/1.2709854

1 February 2007 Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture

Moustafa Remouche, Rabah Mokdad, Moktar Lahrashe, Ayoub Chakari, Patrick P. Meyrueis

Author Affiliations +

Optical Engineering, Vol. 46, Issue 2, 024401 (February 2007). https://doi.org/10.1117/1.2709854

Abstract

Curvature of a multimode optical fiber reduces the numerical aperture and induces radiation losses. We study this phenomenon and we present the "model disadaptation" method to calculate the local numerical aperture and the power attenuation. We exploit the bending effect on the local numerical aperture to propose a new intrinsic optical fiber temperature sensor. The modeling results are experimentally validated for two kinds of optical fibers: a silica-silicone optical fiber and a silica-polymer optical fiber. The simulation and the experimental results are in good accordance and show that the silica-silicone optical fiber sensor can operate between −60 and 152°C with a good response. The silica-polymer optical fiber temperature sensor can sense the temperatures between −249 and 83°C with a good response.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Moustafa Remouche, Rabah Mokdad, Moktar Lahrashe, Ayoub Chakari, and Patrick P. Meyrueis "Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture," Optical Engineering 46(2), 024401 (1 February 2007). https://doi.org/10.1117/1.2709854

Published: 1 February 2007

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