Open AccessAll-fiber, long-active-length Fabry-Perot strain sensor
Author(s) -
Simon Pevec,
Denis Đonlagić
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.015641
Subject(s) - fabry–pérot interferometer , materials science , fiber optic sensor , multi mode optical fiber , optics , optical fiber , fiber , photonic crystal fiber , polarization maintaining optical fiber , sensitivity (control systems) , graded index fiber , dispersion shifted fiber , signal (programming language) , optoelectronics , plastic optical fiber , mode volume , electronic engineering , composite material , computer science , wavelength , physics , engineering , programming language
This paper presents a high-sensitivity, all-silica, all-fiber Fabry-Perot strain-sensor. The proposed sensor provides a long active length, arbitrary length of Fabry-Perot cavity, and low intrinsic temperature sensitivity. The sensor was micro-machined from purposely-developed sensor-forming fiber that is etched and directly spliced to the lead-in fiber. This manufacturing process has good potential for cost-effective, high-volume production. Its measurement range of over 3000 µε, and strain-resolution better than 1 µε were demonstrated by the application of a commercial, multimode fiber-based signal processor.