Fabry-Perot cavity based on sapphire-derived fiber for high temperature sensor

Pengfei Chen; Fufei Pang; Ziwen Zhao; Lin Hong; Na Chen; Zhenyi Chen; Tingyun Wang

doi:10.1117/12.2194528

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28 September 2015 Fabry-Perot cavity based on sapphire-derived fiber for high temperature sensor

Pengfei Chen, Fufei Pang, Ziwen Zhao, Lin Hong, Na Chen, Zhenyi Chen, Tingyun Wang

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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347T (2015) https://doi.org/10.1117/12.2194528
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

An optical fiber high temperature sensor is demonstrated by using a special sapphire-derived fiber. An air cavity is easily created through splicing the sapphire-derived fiber with standard single mode fiber (SMF). Utilizing the air cavity as one reflecting face, a Fabry-Perot (F-P) interferometer is fabricated in the special fiber. Attributed to the high ratio alumina component, the F-P interferometer exhibits high sensitivity response to temperature variation within the range up to 1000 °C. The sensitivity is 15.7 pm/°C.

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Pengfei Chen, Fufei Pang, Ziwen Zhao, Lin Hong, Na Chen, Zhenyi Chen, and Tingyun Wang "Fabry-Perot cavity based on sapphire-derived fiber for high temperature sensor", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347T (28 September 2015); https://doi.org/10.1117/12.2194528

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