Abstract

The femtosecond laser has been an efficient tool for optical fiber high temperature sensor construction. Here, we review the progress of optical fiber high temperature sensors based on femtosecond laser fabricated fiber gratings and various types of fiber in-line interferometers in silica fibers and sapphire fibers.

© 2021 Chinese Laser Press

High-temperature fiber-optic Fabry–Perot interferometric pressure sensor fabricated by femtosecond laser

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Refractive-index-modified-dot Fabry-Perot fiber probe fabricated by femtosecond laser for high-temperature sensing

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In-line Mach-Zehnder interferometer and Bragg grating integrated by femtosecond laser for discrimination of temperature and directional torsion

Wenqing Yang, Tianhao Wu, Zhifang Wu, Xicheng Wang, Perry Ping Shum, Xiaoyan Wang, Zhiyuan Wang, and Jixiong Pu
Opt. Express 30(23) 41933-41942 (2022)

Highly sensitive fiber optic temperature and strain sensor based on an intrinsic Fabry–Perot interferometer fabricated by a femtosecond laser

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High-temperature sensor based on suspended-core microstructured optical fiber

Huaiyin Su, Yundong Zhang, Kai Ma, Yongpeng Zhao, and Jinfang Wang
Opt. Express 27(15) 20156-20164 (2019)