On-chip copper-based vs. optical interconnects: Delay uncertainty, latency, power, and bandwidth density comparative predictions

Abstract

As CMOS technology is scaled, it has become increasingly difficult for conventional copper interconnect to satisfy different design requirements. On-chip optical interconnect has been considered as a potential substitute for electrical interconnect. In this paper, predictions of the performance of CMOS compatible optical devices are made based on current state-ofart optical technologies. Based on these predictions, electrical and optical interconnects are compared for delay uncertainty, latency, power, and bandwidth density. © 2006 IEEE.