Ultrahigh-sensitivity temperature sensor based on in-fiber Fabry-Perot interferometer

Kaiming Yang; Jun He; Shen Liu; Changrui Liao; Ying Wang; Bing Sun; Guolu Yin; Zhengyong Li; Xiaoyong Zhong; Yiping Wang

doi:10.1117/12.2184464

1 July 2015 Ultrahigh-sensitivity temperature sensor based on in-fiber Fabry-Perot interferometer

Kaiming Yang, Jun He, Shen Liu, Changrui Liao, Ying Wang, Bing Sun, Guolu Yin, Zhengyong Li, Xiaoyong Zhong, Yiping Wang

Author Affiliations +

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96553W (2015) https://doi.org/10.1117/12.2184464
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

We demonstrated an ultrasensitive temperature sensor based on a unique fiber Fabry-Perot interferometer (FPI). The FPI was created by means of splicing a mercury-filled silica tube with a single-mode fiber (SMF). The FPI had an air cavity, which was formed by the end face of the SMF and that of the mercury column. Experimental results showed that the FPI had an ultrahigh temperature-sensitivity of up to -41 nm/°C, which was about one order of magnitude higher than those of the reported FPI-based fiber tip sensors. Such a FPI temperature sensor is expected to have potential applications for highly-sensitive ambient temperature sensing.

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Kaiming Yang, Jun He, Shen Liu, Changrui Liao, Ying Wang, Bing Sun, Guolu Yin, Zhengyong Li, Xiaoyong Zhong, and Yiping Wang "Ultrahigh-sensitivity temperature sensor based on in-fiber Fabry-Perot interferometer", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96553W (1 July 2015); https://doi.org/10.1117/12.2184464

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