High-frequency fiber Bragg grating sensing interrogation system using Sagnac-loop-based microwave photonic filtering


A novel high-frequency fiber Bragg grating (FBG) sensing interrogation system by using fiber Sagnac-loop-based microwave photonic filtering is proposed and experimentally demonstrated. By adopting the microwave photonic filtering, the wavelength shift of sensing FBG can be converted into amplitude variation of the modulated electronic radio-frequency (RF) signal. In the experiment, the strain applied onto the sensing FBG has been demodulated by measuring the intensity of the recovered RF signal, and by modulating the RF signal with different frequencies, different interrogation sensitivities can be achieved.

Publication DOI: https://doi.org/10.1109/LPT.2009.2014077
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Aston University (General)
Additional Information: ©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Uncontrolled Keywords: chirped fiber Bragg grating,CFBG,microwave photonics,Sagnac loop,strain sensor,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics
Publication ISSN: 1941-0174
Last Modified: 16 Apr 2024 07:08
Date Deposited: 16 Aug 2010 13:02
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://ieeexplo ... rnumber=4773201 (Publisher URL)
PURE Output Type: Article
Published Date: 2009-04-15
Authors: Fu, Hongyan
Zhang, Wei (ORCID Profile 0000-0002-3584-8541)
Mou, Chengbo (ORCID Profile 0000-0001-6107-3439)
Shu, Xuewen
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
He, Sailing
Bennion, Ian



Version: Published Version

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