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Assessing the Impact of an Optical Switch Physical Design in Network Routing Impairments

Pasquale Pasella

Assessing the Impact of an Optical Switch Physical Design in Network Routing Impairments.

Rel. Andrea Carena, Paolo Bardella, Vittorio Curri. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2019

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Conventional data centers need an efficient interconnection network but electrical switching requires significant power consumption that grows with the data rate and the electrical part became the bottleneck of the transmission. Today different networks are connected by optical connections that allow to reach high data rates: switching at optical level is convenient. Introduction of optical switching would make an immediate improvement in energy efficiency since it eliminates the O/E/O (Optical/Electrical/Optical) conversions and they could address a larger amount of data increasing the performances. A candidate technology to sustain these switching devices is Silicon Photonics because it provides small footprint and low power consumption. The main advantage of using this technology is the reduced fabrication cost at large scale. In this work an optical switch has been designed and analyzed. The starting point was the design of the single elements that composes the switch arriving to characterize it through the evaluation of the BER (Bit Error Rate) of signals that crosses the device under test. The devices were tested by simulation considering a 64-QAM transmission. This thesis follows the development of the device from physical level, designing the device parameters, up to the system level analysis, where the quality of transmission is evaluated through the bit error rate.

Relators: Andrea Carena, Paolo Bardella, Vittorio Curri
Academic year: 2019/20
Publication type: Electronic
Number of Pages: 79
Corso di laurea: Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering)
Classe di laurea: New organization > Master science > LM-29 - ELECTRONIC ENGINEERING
Aziende collaboratrici: UNSPECIFIED
URI: http://webthesis.biblio.polito.it/id/eprint/12544
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