Efficient Optical Power Delivery System for Hybrid Electronic-Photonic Manycore Processors
Shixi Chen, Jiang Xu, Xuanqi Chen, Zhifei Wang, Jun Feng, Jiaxu Zhang, Zhongyuan Tian and Xiao Li
The Hong Kong University of Science and Technology, Hong Kong
schenax@ust.hk
jiang.xu@ust.hk
ABSTRACT
A lot of efforts have been devoted to optically enabled high-performance communication infrastructures for future manycore processors. Silicon photonic network promises high bandwidth, high energy efficiency and low latency. However, the ever-increasing network complexity results in high optical power demands, which stress the optical power delivery and affect delivery efficiency. Facing these challenges, we propose Ring-based Optical Active Delivery (ROAD) system, to effectively manage and efficiently deliver high optical power throughout photonic-electronic hybrid systems. Experimental results demonstrate up to 5.49X energy efficiency improvement compared to traditional design without affecting processor performance.
Keywords: Optical power management, Optical power delivery, manycore processors, Silicon Optical network.
