Analise da redução da latencia em redes opticas de pacotes pela diminuição no tempo de chaveamento de SOAs / Latency reduction in optical packet networks due to SOA switching time improvements

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Currently, more and more attempts are being made to move network processing of information packets to the optical domain. This can potentially lead to an increase of the amount of information that is exchanged among nodes of the network and promote the reduction of latency of packet flow. In this sense, this work examines the effects of reducing the switching time of semiconductor optical amplifier (SOA) based switches in the performance of an experimental arrangement that simulates a network with optieal paeket traffie. By assuming per-bit paeket integrity within a factor of 10% over the switching period of transients, the latency of the network was then theoretically evaluated. j To improve the SOA switching time, a pre-impulse step injected current technique was used to provide excess carriers during transients. As result, a reduction of the order of ten times in the optical switching interval was observed in relation to that provided by ordinary square pulse~. In terms of packet traffic flow, the latency resulting from the improved SOA switching time could considerably be reduced based on the number of switching events occurring within the network

ASSUNTO(S)

data transmission systems optical amplifiers packet switching comutação de pacotes (transmissão de dados) sistemas de transmissão de dados amplificadores oticos

ACESSO AO ARTIGO

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