23 April 2017 Hollow glass microsphere-structured Fabry-Perot interferometric sensor for highly sensitive temperature measurement
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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.
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Junna Cheng, Ciming Zhou, Dian Fan, 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); doi: 10.1117/12.2267518; https://doi.org/10.1117/12.2267518
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