Layout optimization methodology for ring-based on-chip optical network

Abstract

When integrating an optical network into a chip, the communication characteristics and the power cost of the network should be considered. In this letter, to fulfill data coherence communication, a non-intention ring-based optical network which supports multicast and broadcast is studied. To further eliminate the power penalty cost due to waveguide crossing, a layout optimization methodology is proposed. By dividing an optical network into several sections and placing them partby-part into different areas, the total number of cross points is reduced by 83.3%, 71.7% and 70.2% in networks supporting four-, six-and eight-core communication respectively.

Minimizing the number of wavelengths in a cluster WDM mesh-based ONoC through application-specific mapping

“…The on-chip optical communication using waveguides as the transmission medium has essential advantages compared to traditional electrical communication [1][2][3][4]. The characteristics of low delay, high bandwidth, and low power consumption can effectively solve the ongoing bottlenecks of on-chip communication [5][6][7]. In the design of on-chip optical networks, the communication architecture is often structured based on optical circuit switching, which causes a blocking problem when the communication links are occupied by different data flows, leading to lower throughput and higher energy consumption [8,9].…”