Citation

Mokhtar, Mohd Ridzuan and Yusoff, Zulfadzli and Md Rodzi, Noor Shafikah (2019) Determination of physical location of fiber Bragg gratings using traversal heat-induced phase shift. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 61 (5). pp. 1171-1176. ISSN 0895-2477, 1098-2760

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Abstract

In certain application, the exact location of the grating structure of fiber Bragg grating (FBG) is crucial for properly packaging, altering or exploiting the device. This article proposes a simple way to determine the location of FBG by applying heat induced phase shift. A traversing thin heating element is continuously scanned across the FBG while the local optical spectral profile is analyzed. The experiments are performed on an apodised uniform FBG and a chirped FBG. The results show that the symmetry of the local spectral profiles and prominence of the phase-induced spectral dip can be used to determine the structure center and exact physical location of the apodised FBG. Meanwhile, the location of the linearly chirped FBG can be determined by simply observing the wavelength of the spectral dip.

Item Type:	Article
Uncontrolled Keywords:	Apodised grating, chirped grating, fiber Bragg grating, phase shifts
Subjects:	T Technology > TP Chemical technology > TP1080-1185 Polymers and polymer manufacture
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	07 Mar 2022 01:10
Last Modified:	07 Mar 2022 01:10
URII:	http://shdl.mmu.edu.my/id/eprint/9206

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