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Title: The impact of hydrogenation conditions on the temperature and strain discrimination of type i and type ia bragg grating sensors
Authors: Kalli, Kyriacos 
Simpson, Alexander George
Zhou, Kaiming
Keywords: Bragg gratings;Optical fibers;Hydrogenation
Issue Date: 2006
Publisher: Spie Digital Library
Source: Optical Sensing II, 3 -6 April 2006, Strasbourg, France
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.
DOI: 10.1117/12.662311
Rights: © 2006 SPIE.
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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