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Proceedings Paper

Efficiency improvement of an optical fiber fluorescent temperature sensor using a spherical fiber probe design
Author(s): Yu-Shan Xu; Min Li
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Paper Abstract

This paper presents a fluorescence fiber probe design for temperature sensor based on lifetime measurement and focuses on the structural and coupling analysis between the stimulated fluorescence area to light-source and optic fiber. A theoretical model taking advantage of geometric optics is built to estimate the effectiveness of the probe design. A standard 62.5/125μm multimode fiber with a spherical end and least squares fitting method are adopted in the sensing system to demodulate the fluorescence lifetime. Experiment results of temperature range from 17°C to 77°C demonstrate an efficiency increment of 82.36%, which matches well with the simulation.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240R (15 October 2013); doi: 10.1117/12.2031823
Show Author Affiliations
Yu-Shan Xu, Wuhan Univ. of Technology (China)
Min Li, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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