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Proceedings Paper

Hollow glass microsphere-structured Fabry-Perot interferometric sensor for highly sensitive temperature measurement
Author(s): Junna Cheng; Ciming Zhou; Dian Fan; Yiwen Ou
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Paper 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.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103235E (23 April 2017); doi: 10.1117/12.2267518
Show Author Affiliations
Junna Cheng, Wuhan Univ. of Technology (China)
Ciming Zhou, Wuhan Univ. of Technology (China)
Dian Fan, Wuhan Univ. of Technology (China)
Yiwen Ou, Wuhan Univ. of Technology (China)
Hubei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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