Single-Mode versus Multimode Fiber Bragg Grating Temperature Sensors: A Theoretical Study

This paper aims to enhance understanding regarding the impact of the geometrical parameters of the grating on the transmission spectrum of single-mode and multimode fiber Bragg grating sensors and to compare the performance of both sensors for temperature monitoring. Furthermore, we propose a novel...

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Bibliographic Details
Published in:Results in Optics
Main Authors: Paul Stone Macheso, Mohssin Zekriti
Format: Article
Language:English
Published: Elsevier 2024-07-01
Subjects:
Fiber Bragg grating
FDTD
Temperature
Sensitivity
Grating period
Refractive index
Online Access:http://www.sciencedirect.com/science/article/pii/S2666950124001366
Description
Summary:This paper aims to enhance understanding regarding the impact of the geometrical parameters of the grating on the transmission spectrum of single-mode and multimode fiber Bragg grating sensors and to compare the performance of both sensors for temperature monitoring. Furthermore, we propose a novel design where we combine between phase shifted and tilted grating in MMFBG sensors to further enhance their sensitivity and make them more suited for temperature sensing applications. In this regard, a numerical simulation using the eigenmode expansion (EME) solver of Lumerical software is conducted. Analysis of the obtained results suggests that the multimode Fiber Bragg grating sensor has the potential to be used as a temperature sensor with good sensitivity when it is well designed.
ISSN:2666-9501

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