Design of nonblocking high-density photonic switches

Crosstalk, signal attenuation, and nonblocking type are considered the most critical issues that limit the switch density in photonic switches. The research is a theoretical study to develop high-density photonic switch architectures with reduced crosstalk and attenuation and improved nonblocking pe...

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Main Author:	Mohamed Suliman, Fakher Eldin
Format:	Thesis
Language:	English
Published:	2004
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/3978/1/FakherEldinMohamedSulimanPFKE2004.pdf
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id	my-utm-ep.3978
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spelling	my-utm-ep.39782018-01-11T07:25:29Z Design of nonblocking high-density photonic switches 2004-07 Mohamed Suliman, Fakher Eldin TK Electrical engineering. Electronics Nuclear engineering Crosstalk, signal attenuation, and nonblocking type are considered the most critical issues that limit the switch density in photonic switches. The research is a theoretical study to develop high-density photonic switch architectures with reduced crosstalk and attenuation and improved nonblocking performance. Four photonic switching networks have been proposed based on lithium niobate (LiNbO3) directional couplers. They are called NWN, NSN, SCS, and NMN networks. Ideas from the theory of circuit switching have been considered and space dilation techniques have been adopted using new approaches. The properties of the proposed networks have been examined and formulated. Comparison with other well-known designs has also been presented and analyzed. All proposed networks suit unicast connections with the NMN network also capable of multicasting. The NWN is nonblocking in the wide sense while the others are strictly nonblocking. The optimum switch dimension for the proposed networks was found to be 16. With this size the insertion loss of the NWN, NSN, SCS, and NMN networks is 17, 17, 15, and 21 dB, respectively. This signal attenuation is lower than the constraint of 30 dB beyond which optical amplifiers may be needed. The respective signal-to-noise ratio with this size is 11.549, 11.549, 20, and 13.979 dB, which is also higher than the 11 dB required for achieving a good bit error rate performance. The penalty to achieve these results is more hardware complexity that is reflected by the number of couplers used and the number of waveguide crossovers required. Waveguide crossovers can, however, be reduced if some stages or subnetworks of the switch are fabricated on separate substrates. 2004-07 Thesis http://eprints.utm.my/id/eprint/3978/ http://eprints.utm.my/id/eprint/3978/1/FakherEldinMohamedSulimanPFKE2004.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty 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 Mohamed Suliman, Fakher Eldin Design of nonblocking high-density photonic switches
description	Crosstalk, signal attenuation, and nonblocking type are considered the most critical issues that limit the switch density in photonic switches. The research is a theoretical study to develop high-density photonic switch architectures with reduced crosstalk and attenuation and improved nonblocking performance. Four photonic switching networks have been proposed based on lithium niobate (LiNbO3) directional couplers. They are called NWN, NSN, SCS, and NMN networks. Ideas from the theory of circuit switching have been considered and space dilation techniques have been adopted using new approaches. The properties of the proposed networks have been examined and formulated. Comparison with other well-known designs has also been presented and analyzed. All proposed networks suit unicast connections with the NMN network also capable of multicasting. The NWN is nonblocking in the wide sense while the others are strictly nonblocking. The optimum switch dimension for the proposed networks was found to be 16. With this size the insertion loss of the NWN, NSN, SCS, and NMN networks is 17, 17, 15, and 21 dB, respectively. This signal attenuation is lower than the constraint of 30 dB beyond which optical amplifiers may be needed. The respective signal-to-noise ratio with this size is 11.549, 11.549, 20, and 13.979 dB, which is also higher than the 11 dB required for achieving a good bit error rate performance. The penalty to achieve these results is more hardware complexity that is reflected by the number of couplers used and the number of waveguide crossovers required. Waveguide crossovers can, however, be reduced if some stages or subnetworks of the switch are fabricated on separate substrates.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Mohamed Suliman, Fakher Eldin
author_facet	Mohamed Suliman, Fakher Eldin
author_sort	Mohamed Suliman, Fakher Eldin
title	Design of nonblocking high-density photonic switches
title_short	Design of nonblocking high-density photonic switches
title_full	Design of nonblocking high-density photonic switches
title_fullStr	Design of nonblocking high-density photonic switches
title_full_unstemmed	Design of nonblocking high-density photonic switches
title_sort	design of nonblocking high-density photonic switches
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2004
url	http://eprints.utm.my/id/eprint/3978/1/FakherEldinMohamedSulimanPFKE2004.pdf
_version_	1747814485868937216

Design of nonblocking high-density photonic switches

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