Use of dual-grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements


We report on a systematic investigation of the dependence of both temperature and strain sensitivities on the fiber Bragg grating type, including the well-known Type I, Type IIA, and a new type that we have designated Type IA, using both hydrogen-free and hydrogenated B/Ge codoped fibres. We have identified distinct sensitivity characteristics for each grating type, and we have used them to implement a novel dual-grating, dual-parameter sensor device. Three dual-grating sensing schemes with different combinations of grating type have been constructed and compared, and that of a Type IA-Type IIA combination exhibits the best performance, which is also superior to that of previously reported grating-based structures. The characteristics of the measurement errors in such dual-grating sensor systems is also presented in detail. © 2004 Optical Society of America.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2004 Optical Society of America This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Publication ISSN: 2155-3165
Last Modified: 02 Jan 2024 08:07
Date Deposited: 11 Mar 2019 17:34
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://www.opti ... i=AO-43-10-2006 (Publisher URL)
PURE Output Type: Article
Published Date: 2004-04
Authors: Shu, Xuewen
Zhao, Donghui
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Bennion, Ian



Version: Published Version

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