Hollow glass microsphere-structured Fabry-Perot interferometric sensor for highly sensitive temperature measurement

Junna Cheng; Ciming Zhou; Dian Fan; Yiwen Ou

doi:10.1117/12.2267518

23 April 2017 Hollow glass microsphere-structured Fabry-Perot interferometric sensor for highly sensitive temperature measurement

Junna Cheng, Ciming Zhou, Dian Fan, Yiwen Ou

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103235E (2017) https://doi.org/10.1117/12.2267518
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We propose and demonstrate a miniature Fabry-Perot (F-P) interferometric sensor based on a hollow glass microsphere (HGM) for highly sensitive temperature measurement. The sensor head is fabricated by sticking a HGM on the end face of a single-mode fiber, and it consists of a short air F-P cavity between the front and the rear surfaces of the HGM. A sensor with 135.7280-μm cavity length was tested for temperature measurement from -5 °C to 50 °C. The obtained sensitivity reached up to 24.5 pm/°C and the variation rate of the HGM- F-P’s cavity length was2.1 nm/°C. The advantages of compact size, easy fabrication and low cost make the sensor suitable for highly sensitive temperature sensing.

Citation Download Citation

Junna Cheng, Ciming Zhou, Dian Fan, and Yiwen Ou "Hollow glass microsphere-structured Fabry-Perot interferometric sensor for highly sensitive temperature measurement", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103235E (23 April 2017); https://doi.org/10.1117/12.2267518

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