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In-fiber Fabry Perot interferometer with narrow interference fringes for enhanced sensitivity in elastic wave detection

Muhammad Khairol Annuar, Zaini and Lee, Yen-Sian and Nurazima, Ismail and Lim, Kok-Sing and Udos, Waldo and Mohd Hafizi, Zohari and Yang, Hang-Zhou and Harith, Ahmad (2019) In-fiber Fabry Perot interferometer with narrow interference fringes for enhanced sensitivity in elastic wave detection. Optical Fiber Technology, 53. pp. 1-2. ISSN 1068-5200

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Abstract

In this work, we have demonstrated using a pair of in-fiber Fabry-Perot interferometer (FPI) with matched Bragg wavelength and free spectral range (FSR) for elastic wave detection based on matched filter interrogation configuration. The cavity lengths of the FPI structures are deliberately made long to achieve small FSR to enhance their sensitivity to elastic wave pressure. It is found that the sensitivity of sensor to elastic wave pressure is linearly proportional to the FPI cavity length. This finding is in agreement with the theoretical analysis.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Fiber Bragg grating; Fabry-Perot interferometer; Matched filter interrogation
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 27 Nov 2019 04:40
Last Modified: 27 Nov 2019 04:40
URI: http://umpir.ump.edu.my/id/eprint/26067
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