LONE:一种低损耗无阻塞可扩展的8端口光路由器  

LONE:A Low-Loss,Non-Blocking,and Scalable 8-Port Optical Router

作　　者：罗佳莹 邓军勇 杨博文 山蕊 王萍 惠超 Luo Jiaying;Deng Junyong;Yang Bowen;Shan Rui;Wang Ping;Hui Chao(School of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an,Shaanxi 710121,China)

机构地区：[1]西安邮电大学电子工程学院,陕西西安710121

出　　处：《激光与光电子学进展》2022年第3期132-138,共7页Laser & Optoelectronics Progress

摘　　要：片上光互连高带宽、低延时和低功耗的特点可以有效缓解多核处理器中电互连方式的通信瓶颈。片上光路由器是片上光网络设计中必不可少的组成部分。但随着处理器规模的逐渐增大,传统的4端口和5端口已经无法满足现有的网络密度需求。同时随着光互连网络规模的扩大,出现了通信阻塞、微环谐振器利用率低等问题。本文提出了一个8端口片上光路由器LONE,可以实现8端口之间的任意通信且不会出现阻塞。OMNET++仿真结果表明,与同规模光路由器相比,LONE提高了微环谐振器的利用率,微环谐振器的使用数量减少了41.67%以上;插入损耗降低了27.05%以上;在面积成本方面也具有一定的优势,面积开销减少了10%以上;同时LONE结构最大的特点在于结构简单,容易扩展,适应高密度的网络需求。The high bandwidth,low latency,and low power consumption of the on-chip optical interconnection can effectively alleviate the communication bottleneck of the electrical interconnection mode in a multicore processor.On-chip optical router is an essential part of the on-chip optical network design.With the gradual increase in processor scale,the traditional 4-port and 5-port can no longer meet the existing network density requirements.Additionally,with the expansion of the optical interconnection network,the problems such as communication congestion and low utilization of microring resonators have appeared.Therefore,this study proposes an 8-port onchip optical router LONE to realize arbitrary communication between 8-port without blocking.OMNET++simulation results show that LONE improves the utilization of microring resonators compared to optical routers of the same scale.Furthermore,the number of microring resonators is reduced by more than 41.67%,and insertion loss is reduced by more than 27.05%.The cost also has certain advantages,and the area overhead is reduced by more than 10%.Simultaneously,the biggest feature of the LONE structure is its simple structure,easy expansion,and adaptability to the needs of high-density networks.

关 键 词：集成光学 片上光路由器 低损耗 无阻塞 可扩展 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]