1 February 2007 Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture
Author Affiliations +
Optical Engineering, 46(2), 024401 (2007). doi: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.
Moustafa Remouche, Rabah Mokdad, Moktar Lahrashe, Ayoub Chakari, Patrick P. Meyrueis, "Intrinsic optical fiber temperature sensor operating by modulation of the local numerical aperture," Optical Engineering 46(2), 024401 (1 February 2007). http://dx.doi.org/10.1117/1.2709854
JOURNAL ARTICLE
15 PAGES


SHARE
KEYWORDS
Optical fibers

Temperature sensors

Refractive index

Modulation

Sensors

Temperature metrology

Optical engineering

RELATED CONTENT


Back to Top