Title :
The sensing characteristics of long period gratings in three different types of fibre
Author :
Allsop, T. ; Webb, D.J. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
Abstract :
In this paper, sensing characteristics of long period gratings in three different types of single mode optical fibre: a step-index fibre, a progressive three layered fibre and a suppressed-cladding fibre were investigated. It was found that variation in the refractive index profile and material constants of the fibre can produce a dramatic change in the spectral sensitivity for a particular measurand for a given long period grating attenuation band.
Keywords :
diffraction gratings; fibre optic sensors; optical fibre cladding; optical fibre testing; refractive index; attenuation band; long period gratings sensing characteristics; material constants; progressive three layered fibre; refractive index profile; single mode optical fibre; spectral sensitivity; step-index fibre; suppressed-cladding fibre; Attenuation measurement; Fiber gratings; Optical attenuators; Optical fiber devices; Optical fibers; Optical materials; Particle measurements; Photonics; Refractive index; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313549
