High-sensitivity coupling evanescent wave temperature sensor

Huayu Bao; Tingyun Wang; Yuqing Shen

doi:10.1117/12.574814

14 February 2005 High-sensitivity coupling evanescent wave temperature sensor

Huayu Bao, Tingyun Wang, Yuqing Shen

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.574814
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Huayu Bao, Tingyun Wang, and Yuqing Shen "High-sensitivity coupling evanescent wave temperature sensor", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.574814

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