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Proceedings Paper

Optical packet switching and routing using RF frequency header labeling for application in metropolitan access networks
Author(s): Felipe R. Barbosa; Decio Maia; Edson Moschim; Leonardo Pezzolo ; Antonio C. Sachs
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Paper Abstract

A new system for generation, switching and routing of optical packets in photonic networks, having 2x2 optical transparent nodes, is described. The optical packets are constituted of a frequency tone header in the low RF range (MHz), and a digital payload which can be of different rates or formats, in the range 1 to 5 Gb/s. Packets can have time frame between 2-6 μs, with separate fields for header and payload; the header field being much shorter than the payload field. The optical packet switch node includes blocking, routing and drop functions, controlled by electronic logic circuits, processing only the header information. Switching is performed on a packet-by-packet basis; and packets are routed according to header frequency allocation, which relates to node output ports and packet destination node addresses. Processing times for header recognition and packet switching are 2 μs. The digital payload remains untouched throughout the network, delivering high-bandwidth to final users, with very low latency in the network, and very small packet loss. This system is designed for application in metro-access next-generation optical networks (NGON), one example being interconnection of high-capacity wireless base stations.

Paper Details

Date Published: 19 August 2003
PDF: 7 pages
Proc. SPIE 5247, Optical Transmission Systems and Equipment for WDM Networking II, (19 August 2003); doi: 10.1117/12.508854
Show Author Affiliations
Felipe R. Barbosa, Fundacao CPqd (Brazil)
Decio Maia, State Univ. of Campinas (Brazil)
Edson Moschim, State Univ. of Campinas (Brazil)
Leonardo Pezzolo , Fundacao CPqd (Brazil)
Antonio C. Sachs, Fundacao CPqd (Brazil)


Published in SPIE Proceedings Vol. 5247:
Optical Transmission Systems and Equipment for WDM Networking II
Benjamin B. Dingel; Werner Weiershausen; Achyut K. Dutta; Ken-Ichi Sato, Editor(s)

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