Numerical modeling of logic gate in optical communication

The thesis comprehensively reviews the propagation of soliton pulse as a signal for communication. A theoretical model for the transmission of ultrashort soliton pulse is developed by numerical solution of Nonlinear Schrodinger Equation, NLSE by using Matlab programming. This study is able to demons...

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Main Author:	Sufi Roslan, Muhammad
Format:	Thesis
Language:	English
Published:	2012
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/33737/5/MuhammadSufiRoslanMFS2012.pdf
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spelling	my-utm-ep.337372021-06-06T08:36:49Z Numerical modeling of logic gate in optical communication 2012-08 Sufi Roslan, Muhammad QC Physics The thesis comprehensively reviews the propagation of soliton pulse as a signal for communication. A theoretical model for the transmission of ultrashort soliton pulse is developed by numerical solution of Nonlinear Schrodinger Equation, NLSE by using Matlab programming. This study is able to demonstrate that soliton pulse can be generated as signal bit 1 and 0 as computational elementary signal. The signal produced is in the region of time domain, hence the system is compatible for the generation in the Time Domain Multiplexing (TDM) system. Linear and nonlinear directional couplers were used in fiber optics communications. The soliton pulse is based on the secant-hyperbolic model. Results show that the soliton pulse can maintain its power even after travelling for 100 km. The soliton pulse reduces its power when the Group Velocity Dispersion (GVD) parameter, β2 is increased in the negative dispersion domain. The phase change of soliton pulse form 0 to π has shown an increase in the normalized power. However the soliton pulse exhibit chaotic behavior after a rapid increase of power at a phase of 0.8. Three models have been developed; the model of soliton code generator, soliton phase modulator, and bisoliton propagation. Two soliton input was generated inside fiber coupler and the code generator will encode its signal within the altered time difference of ±0.25t. The signal would move in the fiber coupler and the phase modulator controls the phase of the bisoliton generation from 0 to 2π. The result is the formation of optical logic AND and OR gate at the phase difference of 0.4π and 1.1π with normalized power of ~6 and parameter offset ε=0.25. 2012-08 Thesis http://eprints.utm.my/id/eprint/33737/ http://eprints.utm.my/id/eprint/33737/5/MuhammadSufiRoslanMFS2012.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:70122?site_name=Restricted Repository masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QC Physics
spellingShingle	QC Physics Sufi Roslan, Muhammad Numerical modeling of logic gate in optical communication
description	The thesis comprehensively reviews the propagation of soliton pulse as a signal for communication. A theoretical model for the transmission of ultrashort soliton pulse is developed by numerical solution of Nonlinear Schrodinger Equation, NLSE by using Matlab programming. This study is able to demonstrate that soliton pulse can be generated as signal bit 1 and 0 as computational elementary signal. The signal produced is in the region of time domain, hence the system is compatible for the generation in the Time Domain Multiplexing (TDM) system. Linear and nonlinear directional couplers were used in fiber optics communications. The soliton pulse is based on the secant-hyperbolic model. Results show that the soliton pulse can maintain its power even after travelling for 100 km. The soliton pulse reduces its power when the Group Velocity Dispersion (GVD) parameter, β2 is increased in the negative dispersion domain. The phase change of soliton pulse form 0 to π has shown an increase in the normalized power. However the soliton pulse exhibit chaotic behavior after a rapid increase of power at a phase of 0.8. Three models have been developed; the model of soliton code generator, soliton phase modulator, and bisoliton propagation. Two soliton input was generated inside fiber coupler and the code generator will encode its signal within the altered time difference of ±0.25t. The signal would move in the fiber coupler and the phase modulator controls the phase of the bisoliton generation from 0 to 2π. The result is the formation of optical logic AND and OR gate at the phase difference of 0.4π and 1.1π with normalized power of ~6 and parameter offset ε=0.25.
format	Thesis
qualification_level	Master's degree
author	Sufi Roslan, Muhammad
author_facet	Sufi Roslan, Muhammad
author_sort	Sufi Roslan, Muhammad
title	Numerical modeling of logic gate in optical communication
title_short	Numerical modeling of logic gate in optical communication
title_full	Numerical modeling of logic gate in optical communication
title_fullStr	Numerical modeling of logic gate in optical communication
title_full_unstemmed	Numerical modeling of logic gate in optical communication
title_sort	numerical modeling of logic gate in optical communication
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2012
url	http://eprints.utm.my/id/eprint/33737/5/MuhammadSufiRoslanMFS2012.pdf
_version_	1747816172797034496

Numerical modeling of logic gate in optical communication

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