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Proceedings Paper

High-sensitivity coupling evanescent wave temperature sensor
Author(s): Huayu Bao; Tingyun Wang; Yuqing Shen
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Paper Abstract

An optical fiber temperature sensor based on optical fiber coupler and evanescent wave is presented. The overall goal of our research is to design a temperature sensor system which is used to monitor temperature accurately. Coupler is used as the sensor probe. Such kind of coupler uses standard communication SM fiber to be a sensing component of evanescent wave. The probe is obtained by replacing the cladding of coupler region with temperature sensitive material. The whole system is then exposed in a thermal bath. A numerical modeling of the sensor based on supermode theory is studied and the result is simulated. At last, the system for temperature measurement in experiment is simply described.

Paper Details

Date Published: 14 February 2005
PDF: 5 pages
Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); doi: 10.1117/12.574814
Show Author Affiliations
Huayu Bao, Shanghai Univ. (China)
Tingyun Wang, Shanghai Univ. (China)
Yuqing Shen, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 5634:
Advanced Sensor Systems and Applications II
Yun-Jiang Rao; Osuk Y. Kwon; Gang-Ding Peng, Editor(s)

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