A miniaturized optical fiber tip high-temperature sensor based on concave-shaped Fabry-Perot cavity

Chen Zhu; Jie Huang

doi:10.1117/12.2518786

13 May 2019 A miniaturized optical fiber tip high-temperature sensor based on concave-shaped Fabry-Perot cavity

Chen Zhu, Jie Huang

Proceedings Volume 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI; 1098236 (2019) https://doi.org/10.1117/12.2518786
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

A miniaturized optical fiber tip Fabry-Perot interferometer for high-temperature measurement is presented in this paper. The fabrication process of the diaphragm-free Fabry-Perot cavity is quite simple, involving only two steps: fusion splicing and cleaving. By adjusting the arc power during fusion splicing, a concave-shaped structure is obtained, through which the light is coupled/split into the wall of the spliced hollow core fiber. By cleaving the end-face of the hollow core fiber, a concave-shaped diaphragm-free Fabry-Perot interferometer is formed. The temperature response of the sensor was demonstrated, showing a high-temperature tolerance up to 1000 °C and a sensitivity of 0.01226 nm/°C.

Citation Download Citation

Chen Zhu and Jie Huang "A miniaturized optical fiber tip high-temperature sensor based on concave-shaped Fabry-Perot cavity ", Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 1098236 (13 May 2019); https://doi.org/10.1117/12.2518786

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