Leaky mode expansion for optical fibre sensor application

A multimode interference (MMI) based sensor for high refractive index sensing was proposed and demonstrated in this simulation work. The proposed sensor scheme works by a mode expansion according to leaky modes instead of traditionally used radiation modes. The simulation work tried to exhibit wheth...

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Main Author:	Alqazouin, Fouziyah Abdulsalam Hamid
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/99434/1/FouziyahAbdulSalamMKE2021.pdf
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id	my-utm-ep.99434
record_format	uketd_dc
spelling	my-utm-ep.994342023-02-27T04:51:29Z Leaky mode expansion for optical fibre sensor application 2021 Alqazouin, Fouziyah Abdulsalam Hamid TK Electrical engineering. Electronics Nuclear engineering A multimode interference (MMI) based sensor for high refractive index sensing was proposed and demonstrated in this simulation work. The proposed sensor scheme works by a mode expansion according to leaky modes instead of traditionally used radiation modes. The simulation work tried to exhibit whether and how light delivered multimode interference before it worn out. The MMI structure that was used in the simulation consists of a Single-mode-Multimode-Single-mode (SMS) fibres configuration. In this structure, the multimode fibre (MMF) segment was assumed to have only the core while the cladding was discarded and has a specific length. This work exhibited high refractive index (RI) sensing based on the Guided-mode-Leaky-mode-Guided-mode (GLG) structure or the SMS fibre structure previously cited by comprehending the fundamental theories of leaky mode expansion. The work also attempted to analyse the effects of important parameters of leaky mode expansion on sensing performances such as length and diameter of MMF, and changing value of surrounding refractive index. The simulation work was performed utilising BeamProp software to ascertain the needed power intensity and RI sensitivity to excite light into the MMF for detection. The economical and simple sensor structure is ideal in numerous applications, including for detection, diagnosis, health determination, safety, environmental, liquid food, and water quality control. 2021 Thesis http://eprints.utm.my/id/eprint/99434/ http://eprints.utm.my/id/eprint/99434/1/FouziyahAbdulSalamMKE2021.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149766 masters Universiti Teknologi Malaysia Faculty of Engineering - School of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Alqazouin, Fouziyah Abdulsalam Hamid Leaky mode expansion for optical fibre sensor application
description	A multimode interference (MMI) based sensor for high refractive index sensing was proposed and demonstrated in this simulation work. The proposed sensor scheme works by a mode expansion according to leaky modes instead of traditionally used radiation modes. The simulation work tried to exhibit whether and how light delivered multimode interference before it worn out. The MMI structure that was used in the simulation consists of a Single-mode-Multimode-Single-mode (SMS) fibres configuration. In this structure, the multimode fibre (MMF) segment was assumed to have only the core while the cladding was discarded and has a specific length. This work exhibited high refractive index (RI) sensing based on the Guided-mode-Leaky-mode-Guided-mode (GLG) structure or the SMS fibre structure previously cited by comprehending the fundamental theories of leaky mode expansion. The work also attempted to analyse the effects of important parameters of leaky mode expansion on sensing performances such as length and diameter of MMF, and changing value of surrounding refractive index. The simulation work was performed utilising BeamProp software to ascertain the needed power intensity and RI sensitivity to excite light into the MMF for detection. The economical and simple sensor structure is ideal in numerous applications, including for detection, diagnosis, health determination, safety, environmental, liquid food, and water quality control.
format	Thesis
qualification_level	Master's degree
author	Alqazouin, Fouziyah Abdulsalam Hamid
author_facet	Alqazouin, Fouziyah Abdulsalam Hamid
author_sort	Alqazouin, Fouziyah Abdulsalam Hamid
title	Leaky mode expansion for optical fibre sensor application
title_short	Leaky mode expansion for optical fibre sensor application
title_full	Leaky mode expansion for optical fibre sensor application
title_fullStr	Leaky mode expansion for optical fibre sensor application
title_full_unstemmed	Leaky mode expansion for optical fibre sensor application
title_sort	leaky mode expansion for optical fibre sensor application
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Electrical Engineering
publishDate	2021
url	http://eprints.utm.my/id/eprint/99434/1/FouziyahAbdulSalamMKE2021.pdf
_version_	1776100598640279552

Leaky mode expansion for optical fibre sensor application

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