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


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.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
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
Publication ISSN: 1996-756X
Last Modified: 08 Jan 2024 09:22
Date Deposited: 08 Nov 2019 15:57
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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 (ORCID Profile 0000-0002-6011-1912)
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Bennion, Ian



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