The impact of hydrogenation conditions on the temperature and strain discrimination of Type i and Type IA Bragg grating sensors

Kalli, Kyriacos, Simpson, A. George, Zhou, Kaimin, Zhang, Lin and Bennion, Ian (2006). The impact of hydrogenation conditions on the temperature and strain discrimination of Type i and Type IA Bragg grating sensors. Proceedings of SPIE - International Society for Optical Engineering, 6189 ,

Abstract

We report experimental findings for tailoring the temperature and strain coefficients of Type I and Type IA fibre Bragg gratings by influencing the photosensitivity presensitisation of the host optical fibre. It is shown that by controlling the level of hydrogen saturation, via hot and cold hydrogenation, it is possible to produce gratings with lower thermal coefficients. Furthermore, there is a larger difference between the Type I and Type IA thermal coefficients and a significant improvement in the matrix condition number, which impacts the ability to recover accurate temperature and strain data using the Type1-1A dual grating sensor.

Publication DOI: https://doi.org/10.1117/12.662311
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Additional Information: Copyright 2006 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Uncontrolled Keywords: Fibre Bragg gratings,Optical fibre sensors,Photosensitivity,Temperature and strain sensors,Type IA grating,Electrical and Electronic Engineering,Condensed Matter Physics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.spi ... /12.662311.full (Publisher URL)
Published Date: 2006-08-09
Authors: Kalli, Kyriacos
Simpson, A. George
Zhou, Kaimin ( 0000-0002-6011-1912)
Zhang, Lin ( 0000-0002-1691-5577)
Bennion, Ian

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