High precision optical fiber Fabry-Perot sensor for gas pressure detection

Yan Mao; Xing-lin Tong

doi:10.1117/12.2031150

15 October 2013 High precision optical fiber Fabry-Perot sensor for gas pressure detection

Yan Mao, Xing-lin Tong

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89240J (2013) https://doi.org/10.1117/12.2031150
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

An optical fiber Fabry-Perot (F-P) sensor with quartz diaphragm for gas pressure testing was designed and fabricated. It consisted of single-mode fiber, hollow glass tube and quartz diaphragm. It uses the double peak demodulation to obtain the initialized cavity length. The variety of cavity length can be calcultated by the single peak demodulation after changing the gas pressure. The results show that the sensor is small in size, whose sensitivity is 19 pm/kPa in the range of the 10 ~ 260 kPa gas pressure. And it has good linearity and repeatability.

Citation Download Citation

Yan Mao and Xing-lin Tong "High precision optical fiber Fabry-Perot sensor for gas pressure detection", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240J (15 October 2013); https://doi.org/10.1117/12.2031150

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