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

Volume

21

Issue

1

fYear

2003

fDate

1/1/2003 12:00:00 AM

Firstpage

264

Lastpage

268

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2003.808613

Filename

1190173