OPTIMA: Scalable, Multi-Stage, 640-Gbit/s ATM Switching System Based on Advanced Electronic and Optical WDM Technologies

Naoaki YAMANAKA  Eiji OKI  Seisho YASUKAWA  Ryusuke KAWANO  Katsuhiko OKAZAKI  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.7   pp.1488-1496
Publication Date: 2000/07/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching
ATM,  switch,  multi-chip module,  WDM,  interconnection,  

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An experimental 640-Gbit/s ATM switching system is described. The switching system is scalable and quasi-non-blocking and uses hardware self-rearrangement in a three-stage network. Hardware implementation results for the switching system are presented. The switching system is fabricated using advanced 0.25-µm CMOS devices, high-density multi-chip-module (MCM) technology, and optical wavelength-division-multiplexing (WDM) interconnection technology. A scalable 80-Gbit/s switching module is fabricated in combination with a developed scalable-distributed-arbitration technique, and a WDM interconnection system that connects multiple 80-Gbit/s switching modules is developed. Using these components, an experimental 640-Gbit/s switching system is partially constructed. The 640-Gbit/s switching system will be applied to future broadband ATM networks.