학술논문

Silicon Photonics for Extreme Scale Systems
Document Type
Periodical
Source
Journal of Lightwave Technology J. Lightwave Technol. Lightwave Technology, Journal of. 37(2):245-259 Jan, 2019
Subject
Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Integrated circuit interconnections
Photonics
Bandwidth
Silicon
Power dissipation
Optical interconnections
Computer architecture
Disaggregation
extreme scale systems
interconnection networks
optical switching
silicon photonics
Language
ISSN
0733-8724
1558-2213
Abstract
High-performance systems are increasingly bottlenecked by the growing energy and communications costs of interconnecting numerous compute and memory resources. Recent advances in integrated silicon photonics offer the opportunity of embedding optical connectivity that directly delivers high off-chip communication bandwidth densities with low power consumption. This paper reviews the design and integration of silicon photonic interconnection networks that address the data-movement challenges in high-performance systems. Beyond alleviating the bandwidth/energy bottlenecks, embedded photonics can enable new disaggregated architectures that leverage the distance independence of optical transmission. This review paper presents some of the key interconnect requirements to create a new generation of photonic architectures for extreme scale systems, including aggregate bandwidth, bandwidth density, energy efficiency, and network resources utilization.