Title :
Intrinsic Fabry-Pérot Interferometer Based on Concave Well on Fiber End
Author :
Ruohui Wang ; Xueguang Qiao
Author_Institution :
Dept. of Phys., Northwest Univ., Xi´an, China
Abstract :
miniature fiber-optic Fabry-Pérot cavity interferometerA miniature fiber-optic Fabry-Pérot cavity interferometer is presented. The interferometer is fabricated at the fiber tip by wet chemical etching using hydrofluoric acid. A concave well is created on the fiber end face. Interference happens between the reflections from the fiber core and the end of the cladding. We demonstrate applications of the interferometric sensor for temperature and gas refractive index sensing.
Keywords :
Fabry-Perot interferometers; etching; fibre optic sensors; optical fibre cladding; optical fibre fabrication; refractive index measurement; temperature sensors; cladding; concave well; fiber core; fiber end face; fiber tip; gas refractive index sensing; hydrofluoric acid; interference; interferometric sensor; intrinsic Fabry-Perot Interferometer; miniature fiber-optic Fabry-Perot cavity interferometer; reflection; temperature sensing; wet chemical etching; Cavity resonators; Etching; Interference; Optical interferometry; Optimized production technology; Temperature measurement; Temperature sensors; Fabry-P??rot interferometers; Optical fiber devices; temperature measurement;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2326164
