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A miniaturized optical fiber tip high-temperature sensor based on concave-shaped Fabry-Perot cavity
Author(s): Chen Zhu; Jie Huang
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Paper 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.

Paper Details

Date Published: 13 May 2019
PDF: 6 pages
Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 1098236 (13 May 2019); doi: 10.1117/12.2518786
Show Author Affiliations
Chen Zhu, Missouri Univ. of Science and Technology (United States)
Jie Huang, Missouri Univ. of Science and Technology (United States)


Published in SPIE Proceedings Vol. 10982:
Micro- and Nanotechnology Sensors, Systems, and Applications XI
Thomas George; M. Saif Islam, Editor(s)

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