Title :
The Data Vortex Optical Packet Switched Interconnection Network
Author :
Liboiron-Ladouceur, Odile ; Shacham, Assaf ; Small, Benjamin A. ; Lee, Benjamin G. ; Wang, Howard ; Lai, Caroline P. ; Biberman, Aleksandr ; Bergman, Keren
Author_Institution :
McGill Univ., Montreal, QC
fDate :
7/1/2008 12:00:00 AM
Abstract :
A complete review of the data vortex optical packet switched (OPS) interconnection network architecture is presented. The distributed multistage network topology is based on a banyan structure and incorporates a deflection routing scheme ideally suited for implementation with optical components. An implemented 12-port system prototype employs broadband semiconductor optical amplifier switching nodes and is capable of successfully routing multichannel wavelength-division multiplexing packets while maintaining practically error-free signal integrity (BER < 10-12) with median latencies of 110 ns. Packet contentions are resolved without the use of optical buffers via a distributed deflection routing control scheme. The entire payload path in the optical domain exhibits a capacity of nearly 1 Tb/s. Further experimental measurements investigate the OPS interconnection network´s flexibility and robustness in terms of optical power dynamic range and network timing. Subsequent experimental investigations support the physical layer scalability of the implemented architecture and serve to substantiate the merits of the data vortex OPS network architectural paradigm. Finally, modified design considerations that aim to increase the network throughput and device-level performance are presented.
Keywords :
error statistics; optical fibre networks; optical interconnections; packet switching; semiconductor optical amplifiers; telecommunication network routing; telecommunication network topology; wavelength division multiplexing; 12-port system; BER; banyan structure; broadband semiconductor optical amplifier; data vortex OPS interconnection network; distributed deflection routing scheme; distributed multistage network topology; error-free signal integrity; multichannel wavelength-division multiplexing packets; optical components; optical domain; optical packet switching; packet contentions; physical layer scalability; switching nodes; Multiprocessor interconnection networks; Network topology; Optical buffering; Optical devices; Optical interconnections; Optical packet switching; Optical vortices; Prototypes; Routing; Semiconductor optical amplifiers; Interconnection networks (multiprocessor); optical interconnections; packet switching; photonic switching systems; wavelength-division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.913739