Optic sensors of high refractive-index responsivity and low thermal cross sensitivity that use fiber Bragg gratings of >80° tilted structures


For the first time to the authors' knowledge, fiber Bragg gratings (FBGs) with >80° tilted structures nave been fabricated and characterized. Their performance in sensing temperature, strain, and the surrounding medium's refractive index was investigated. In comparison with normal FBGs and long-period gratings (LPGs), >80° tilted FBGs exhibit significantly higher refractive-index responsivity and lower thermal cross sensitivity. When the grating sensor was used to detect changes in refractive index, a responsivity as high as 340 nm/refractive-index unit near an index of 1.33 was demonstrated, which is three times higher than that of conventional LPGs. © 2006 Optical Society of America.

Publication DOI: https://doi.org/10.1364/OL.31.001193
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2006 The Optical Society. This paper was published in Optics Letters 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: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-31-9-1193. 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: fiber Bragg gratings,FBGs,>80° tilted structures,performance,sensing temperature,strain,refractive index,refractive-index responsivity,thermal cross sensitivity,Atomic and Molecular Physics, and Optics
Publication ISSN: 1539-4794
Last Modified: 13 May 2024 07:07
Date Deposited: 23 Mar 2011 14:56
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://www.opti ... ri=ol-31-9-1193 (Publisher URL)
PURE Output Type: Article
Published Date: 2006-05
Published Online Date: 2006-02-02
Authors: Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Chen, Xianfeng F.
Bennion, Ian



Version: Published Version

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