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Proceedings Paper

A sensing system based on temperature-tunable micro-resonator
Author(s): Jiyou Wang; Bingzhang Wang; Fang Yuan
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Paper Abstract

Thermal properties and spectroscopic properties of the glass micro-sphere were presented in this paper. The Er3+ emission spectra of a kind of Erbium-doped glass microsphere were measured and discussed under 532nm excitation in a series of temperatures. The change in the temperature of the microsphere leads to a change in both the size and the index of refraction of the sphere, which results in the resonance shift of the peaks of whispering gallery modes in emission spectra. The temperature of the environment surrounding the sphere can be determined by monitoring the shift, which allows us to calibrate the sensing function of the shift proportional to temperature. Based on the thermal effects, we propose a novel optical temperature sensor using micrometer-sized sphere.

Paper Details

Date Published: 9 November 2010
PDF: 6 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78531P (9 November 2010); doi: 10.1117/12.868609
Show Author Affiliations
Jiyou Wang, Beijing Univ. of Technology (China)
Bingzhang Wang, CangZhou Normal Univ. (China)
Fang Yuan, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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