[WC1] Distributed and Micro Sensing

[WC1-2] A Hollow Core Fiber Fabry–Perot Interferometer Micromachining by Femtosecond Laser

〇Yang Lu¹, Chien-Hsing Chen², Chao-Tsung Ma¹, Cheng-Ling Lee¹ (¹National United Univ., Taiwan, ²National Pingtung Univ. of Science and Technology, Taiwan)

Keywords:Fiber optic sensors, fiber Fabry-Perot interferometer, femtosecond (fs) laser micromachining, thermo-optic coefficient

A microcavity hollow core fiber Fabry-Perot interferometer based on fusion splicing a section of hollow-core fiber between two fibers and further micromachined by femtosecond (fs) laser is developed for measuring thermo-optic coefficients (TOCs) of liquids.