An Experimental Validation of a Wavelength-Striped, Packet Switched, Optical Interconnection Network

Abstract

Abstract-We experimentally validate a complete optical packet switched interconnection network, implementing the SPINet architecture. The scalable photonic integrated network (SPINet) architecture capitalizes on wavelength division multiplexing (WDM) to provide very large transmission bandwidths, simplify network design, and reduce the network's power dissipation. Contention resolution is performed in the optical domain, and a novel physical layer acknowledgement protocol is employed to mitigate the associated latency and performance penalties. Moreover, the SPINet architecture is specifically designed to enable on-chip integration by not using any kind of optical delay lines. Experiments presented include a complete functionality verification, error-free routing of 80 Gb/s wavelength-striped optical packets (8 wavelengths each modulated at 10 Gb/s) with a bit-error rate (BER) better than 10 12 , and novel performance-enhancement techniques such as path adjustments and load balancing.Index Terms-Multistage interconnection networks, multiprocessor interconnection, optical interconnections, photonic switching systems.

Broadband Multicasting for Wavelength-Striped Optical Packets

“…AND IMPLEMENTATION The multiwavelength packet multicast investigations are performed on a switching fabric implementation that is based on a previously demonstrated OPS architecture [33], [34]. The fabric aims to optically interconnect access network edge users or computing network ports.…”

Design and Demonstration of an All-Optical Hybrid Packet and Circuit Switched Network Platform for Next Generation Data Centers

“…To that end, we present the design and implementation of an all-optically switched network platform featuring the ability to route both packet and circuit switched traffic simultaneously in a configurable manner. Our experimental platform is implemented as a hybrid packet/circuit 4×4 SOA-based switching node, leveraging our previous work in optical packet switching design [5]. We demonstrate the capacity and traffic adaptability of the proposed platform by concurrently validating the error-free routing and transmission of short, 4×10 Gb/s wavelength-striped optical packets and the successful establishment of a high-bandwidth circuit transporting a 10 Gb/s data stream.…”

A Bidirectional 2×2 Photonic Network Building-Block for High-Performance Data Centers

“…As a result, the performance improvement delivered by the high-capacity optics remains limited to only a subset of the traffic classes in the network [6,7]. Fortunately, a number of high-performance multi-stage network architectures have been realized utilizing photonic switch architectures based on semiconductor optical amplifiers (SOAs), which are capable of achieving ultra-high bandwidths at sub-nanosecond switching speeds [8].…”