Open AccessTemperature sensing up to 1300°C using suspended-core microstructured optical fibers
Author(s) -
Stephen C. WarrenSmith,
Linh V. Nguyen,
Catherine E. Lang,
Heike Ebendorff-Heidepriem,
Tanya M. Monro
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.003714
Subject(s) - materials science , optics , optical fiber , femtosecond , hard clad silica optical fiber , cladding (metalworking) , fiber optic sensor , photonic crystal fiber , plastic clad silica fiber , fiber laser , all silica fiber , microstructured optical fiber , core (optical fiber) , fiber bragg grating , fusion splicing , laser , optoelectronics , plastic optical fiber , wavelength , composite material , physics
We demonstrate a new approach to high temperature sensing using femtosecond laser ablation gratings within silica suspended-core microstructured optical fibers. The simple geometry of the suspended-core fiber allows for femtosecond laser processing directly through the fiber cladding. Pure silica glass is used, allowing the sensor to be used up to temperatures as high as 1300°C while still allowing the fibre to be spliced to conventional fiber. The sensor can also be wavelength division multiplexed, with three sensors in a single fiber demonstrated.