Optical Sensors

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

[+] Author Affiliations
Mustapha Remouche

Université Louis Pasteur, Ecole Nationale Supérieure de Physique de Strasbourg, Laboratoire des Systèmes Photoniques, Parc d’lnnovation, Boulevard Sébastien Brant, B. P. 10413, F-67412 Illkirch, Cedex, France

Rabah Mokdad

Université Louis Pasteur, Ecole Nationale Supérieure de Physique de Strasbourg, Laboratoire des Systèmes Photoniques, Parc d’lnnovation, Boulevard Sébastien Brant, B. P. 10413, F-67412 Illkirch G, Cedex, France and Université Mouloud Mammeri, Laboratoire de Physique et Chimie Quantique, 15000 Tizi-ouzou, Algérie

Moktar Lahrashe

Université Louis Pasteur, Ecole Nationale Supérieure de Physique de Strasbourg, Laboratoire des Systèmes Photoniques, Parc d’lnnovation, Boulevard Sébastien Brant, B. P. 10413, F-67412 Illkirch G, Cedex, France

Ayoub Chakari

Université Louis Pasteur, Ecole Nationale Supérieure de Physique de Strasbourg, Laboratoire des Systèmes Photoniques, Parc d’lnnovation, Boulevard Sébastien Brant, B. P. 10413, F-67412 Illkirch G, Cedex, France

Patrick Meyrueis

Université Louis Pasteur, Ecole Nationale Supérieure de Physique de Strasbourg, Laboratoire des Systèmes Photoniques, Parc d’lnnovation, Boulevard Sébastien Brant, B. P. 10413, F-67412 Illkirch G, Cedex, France

Opt. Eng. 46(2), 024401 (February 27, 2007). doi:10.1117/1.2709854
History: Received November 14, 2005; Revised July 10, 2006; Accepted July 24, 2006; Published February 27, 2007
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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

Citation

Mustapha Remouche ; Rabah Mokdad ; Moktar Lahrashe ; Ayoub Chakari and Patrick Meyrueis
"Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture", Opt. Eng. 46(2), 024401 (February 27, 2007). ; http://dx.doi.org/10.1117/1.2709854


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