Title :
Bend and index insensitive long period grating in progressive three layered optical fibre
Author :
Allsop, Thomas ; Webb, David J. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
3/20/2003 12:00:00 AM
Abstract :
A long period fibre grating written in a progressive three-layered optical fibre is shown to exhibit an attenuation band that has a very low bending sensitivity (5.1 × 10-2 nm m) compared to normal step-index fibre, and is also insensitive to changes in the refractive index of the surrounding medium. Applications to sensing and telecommunications are discussed.
Keywords :
bending; diffraction gratings; optical fibres; refractive index; attenuation band; bending sensitivity; long period grating; progressive three-layered optical fibre; refractive index sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030387
