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Optically processed self-routing, synchronization, and contention resolution for 1-D and 2-D photonic switching architectures

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1 Author(s)
Prucnal, P.R. ; Dept. of Electr. Eng., Princeton Univ., NJ, USA

The use of optical processing to perform switch routing functions permits real-time routing of packets at high speed. The architecture of a 2×2 photonic packet switching node using optically processed fixed-directory routing, contention resolution using deflection routing, and synchronization is presented. Simplified optically processed self-routing procedures are found for banyan and lattice networks. Although lattice networks require a larger number of switching elements than banyan networks, they have a simpler interconnection field, and unlike banyan networks, the self-routing rule for lattices can avoid any internal blocking. The layout of a self-routing 2-D lattice, using 2×2 switches and a smart pixel, is described. Based on a first-arrival self-routing rule, an additional processing logic is required to perform routing

Published in:

Quantum Electronics, IEEE Journal of  (Volume:29 ,  Issue: 2 )

Date of Publication:

Feb 1993

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