Impact of hydrogenation conditions on the temperature and strain coefficients of type 1 and typela dual grating sensors

Abstract

We report experimental findings for tailoring the temperature and strain coefficients of Type 1 and Type 1A 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 1 and Type 1A thermal coefficients and a significant improvement in the matrix condition number, which impacts the ability to recover accurate temperature and strain invariant data using the Type 1-1A dual grating sensor.

Publication DOI: https://doi.org/10.1117/12.624287
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: Copyright 2005 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 1A grating,Electrical and Electronic Engineering,Condensed Matter Physics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.spi ... 4287.full?SSO=1 (Publisher URL)
PURE Output Type: Conference article
Published Date: 2005-05-23
Authors: Kalli, Kyriacos
Simpson, George
Zhou, Kaiming ( 0000-0002-6011-1912)
Zhang, Lin ( 0000-0002-1691-5577)
Bennion, Ian

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