Efficiency improvement of an optical fiber fluorescent temperature sensor using a spherical fiber probe design

Yu-Shan Xu; Min Li

doi:10.1117/12.2031823

15 October 2013 Efficiency improvement of an optical fiber fluorescent temperature sensor using a spherical fiber probe design

Yu-Shan Xu, Min Li

Author Affiliations +

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89240R (2013) https://doi.org/10.1117/12.2031823
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

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.

Citation Download Citation

Yu-Shan Xu and Min Li "Efficiency improvement of an optical fiber fluorescent temperature sensor using a spherical fiber probe design", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240R (15 October 2013); https://doi.org/10.1117/12.2031823

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