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

Fu, Hongyan, Zhang, Wei, Mou, Chengbo, Shu, Xuewen, Zhang, Lin, He, Sailing and Bennion, Ian (2009). High-frequency fiber Bragg grating sensing interrogation system using Sagnac-loop-based microwave photonic filtering. IEEE Photonics Technology Letters, 21 (8), pp. 519-521.


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: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
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
Full Text Link: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4773201
Related URLs: http://www.scopus.com/inward/record.url?scp=70350738044&partnerID=8YFLogxK (Scopus URL)
Published Date: 2009-04-15
Authors: Fu, Hongyan
Zhang, Wei ( 0000-0002-3584-8541)
Mou, Chengbo ( 0000-0001-6107-3439)
Shu, Xuewen
Zhang, Lin ( 0000-0002-1691-5577)
He, Sailing
Bennion, Ian


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