Fiber-optic temperature sensor based on specialty triple-clad fiber

Xinghu Fu; Haiyang Xie; Chao Zhang; Peng Guo; Guangwei Fu; Weihong Bi

doi:10.1117/12.2072398

17 November 2014 Fiber-optic temperature sensor based on specialty triple-clad fiber

Xinghu Fu, Haiyang Xie, Chao Zhang, Peng Guo, Guangwei Fu, Weihong Bi

Proceedings Volume 9274, Advanced Sensor Systems and Applications VI; 92741P (2014) https://doi.org/10.1117/12.2072398
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

A fiber-optic temperature sensor based on specialty triple-clad fiber (STCF) is proposed. Based on coupling mode theory, the STCF can be equivalent to a rod waveguide and two tube waveguides. The different mode dispersion curves are calculated and a resonance wavelength is obtained. A straightforward experiment is performed to prove the temperature sensitivity. Experimental results shows that the temperature sensitivity can be achieve 97.2pm /°C in 20~90°C and there is a good repeatability. The resonance wavelength has a red shift and increase as increasing temperature. Thus, this sensor can be used for temperature monitoring in time.

Citation Download Citation

Xinghu Fu, Haiyang Xie, Chao Zhang, Peng Guo, Guangwei Fu, and Weihong Bi "Fiber-optic temperature sensor based on specialty triple-clad fiber", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92741P (17 November 2014); https://doi.org/10.1117/12.2072398

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