Title :
Investigations of the spectral sensitivity of long period gratings fabricated in three-layered optical fiber
Author :
Allsop, T. ; Webb, D.J. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
1/1/2003 12:00:00 AM
Abstract :
Long period gratings (LPGs) were written into a progressive three-layered (PTL) monomode optical fiber. The spectral sensitivity was experimentally measured with respect to temperature and the surrounding refractive index, and compared with theoretical predictions. The behavior of the devices suggests that this type of fiber may be useful as a means of reducing the sensitivity of LPGs to the surrounding medium and for simultaneous temperature and refractive index sensing.
Keywords :
diffraction gratings; fibre optic sensors; optical fibre fabrication; refractive index measurement; sensitivity; temperature measurement; temperature sensors; fibre optic sensors; long period fibre gratings fabrication; progressive three-layered monomode optical fiber; refractive index; refractive index sensing; simultaneous temperature sensing; spectral sensitivity; surrounding refractive index; temperature sensing; temperature sensitivity; three-layered optical fiber; Attenuation; Erbium-doped fiber amplifier; Fiber gratings; Optical attenuators; Optical fiber devices; Optical fibers; Optical refraction; Refractive index; Temperature measurement; Temperature sensors;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.808613
