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Title: Tailoring the temperature and strain coefficients of type I and type ia dual grating sensors - the impact of hydrogenation conditions
Authors: Kalli, Kyriacos 
Simpson, Alexander George 
Zhou, Kaiming 
Zhang, Lin 
Bennion, Ian 
Keywords: Bragg gratings;Hydrogenation;Optical fibers;Fiber optics;Temperature measurements
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 1-May-2006
Publisher: Iop Science
Source: Measurement Science and Technology,2006, vol. 17, no. 5, pp. 949-954
Journal: Measurement Science and Technology 
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 presensitization 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 Type 1-1A dual grating sensor.
ISSN: 0957-0233
DOI: 10.1088/0957-0233/17/5/S02
Rights: © 2006 IOP Publishing Ltd.
Type: Article
Appears in Collections:Άρθρα/Articles

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