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Optical Engineering

Three-stage high-performance optoelectronic asynchronous transfer mode switch: design and performance
Author(s): Mark P. Dames; James R. Collington; William A. Crossland; Robin W. A. Scarr
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Paper Abstract

We explore the possibility of enhancing very large scale integration (VLSI) electronic switch structures using reconfigurable freespace optical chip-to-chip interconnects. We present a novel technological approach to the realization of an output queued asynchronous transfer mode (ATM) switching fabric within a low-blocking, three-stage network configuration by employing both electronic and optical switching stages with reduced cross-office transfer rates. The first and third stages are implemented by the selective reading/writing from/to a sectorized optically accessible random access memory (known as opto-RAM) currently under development in our laboratory. The second (central) stage uses holographic fan-out/selective fan-in optics to implement a freespace photonic crossbar switch. We assess the performance of the ATM switch fabric using computer simulation as well as analytic techniques.

Paper Details

Date Published: 1 December 1996
PDF: 9 pages
Opt. Eng. 35(12) doi: 10.1117/1.601116
Published in: Optical Engineering Volume 35, Issue 12
Show Author Affiliations
Mark P. Dames, Cambridge Univ. (United Kingdom)
James R. Collington, Cambridge Univ. (United Kingdom)
William A. Crossland, Univ. of Cambridge (United Kingdom)
Robin W. A. Scarr, Cambridge Univ. (United Kingdom)

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