Title :
Refractive index sensing with long-period grating fabricated in biconical tapered fibre
Author :
Allsop, T. ; Floreani, F. ; Jedrzejewski, K. ; Marques, P. ; Romero, R. ; Webb, D. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
4/14/2005 12:00:00 AM
Abstract :
A single long-period fibre grating was written in a biconical fibre taper made from standard communications step-index optical fibre, resulting in an interferometric fibre sensor device that provided a resolution of 1×10-4 for refractive indices in the range of 1.30 to 1.34, suggesting that these devices may be suitable for use with aqueous solutions.
Keywords :
Mach-Zehnder interferometers; diffraction gratings; fibre optic sensors; infrared spectra; optical fibre fabrication; refractive index measurement; Mach-Zehnder-like interferometer; aqueous solutions; biconical tapered fibre; interferometric fibre sensor device; long-period biconical tapered fibre grating fabrication; refractive index sensing; refractive index sensing element; refractive indices; resolution; single long-period fibre grating writing; standard communications step-index optical fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20058352
