Torus结构的芯片上光互连网络损耗分析和优化  

Formal worst case analysis of insertion loss in Torus-based optical networks-on-chip

作　　者：赵巍仑 何娟[1] 牛伟[2] 杨逐[3] 谢军[1] 张琪琦[1] 龚元洁 王勇 解宜原[1] 

机构地区：[1]西南大学电子信息工程学院,四川重庆400715 [2]中国电子科技集团公司第26研究所,四川重庆400060 [3]重庆师范大学教育科学学院,四川重庆401331

出　　处：《量子电子学报》2014年第2期245-251,共7页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(61205088);重庆市自然科学基金(2011BB2009);西南大学博士基金(SWU110030);国家级大学生创新创业训练计划(201210635127)资助

摘　　要：基于硅基波导、十字状波导交叉和基于波导微环的光交换器件的损耗特性,对Torus结构的芯片上光互连网络建立了损耗模型,利用该模型来对芯片上光互连网络进行光器件级、光路由器级和网络级的损耗特性分析,同时建立芯片上光互连网络损耗自动分析系统.依据该系统可以得到不同网络规模下的最大损耗,并分别分析了基于Crossbar、Cygnus和Crux路由器的torus结构网络的损耗特性.传输损耗随着网络规模的扩展而增加,最小的传输损耗出现在M=N时.同时,可以得到采用Crux路由器构成的芯片上光互连网络的传输损耗最小,小于Cygnus构成的芯片上光互连网络约5 dB.Based on the loss parameters of silicon waveguide, waveguide crossing and microresonator based optical switching elements, a general analytical model to study the transmission loss in Torus-based optical network on chip （ONoC） was proposed. The model was used to analyze insertion loss at device level, router level and network level. Meanwhile, the automatic analysis system was established. The maximal insertion loss in different network scales was obtained from the analysis system. The maximal insertion loss of the Torus-based ONoC using the Crossbar, Cygnus and Crux was also analyzed. From the numerical investigation, it can be obtained that the insertion loss enlarges with the increasing network scale and the minimum insertion loss is presented in condition of M = N. Meanwhile, compared with the Crossbar and Cygnus, the insertion loss of the ONoC using Crux is minimum. The insertion loss of the ONoC using Crux is less than the insertion loss of the ONoC using Cygnus about 5 dB.

关 键 词：光通信 光交换器 芯片上光互连网络 损耗 路由器 Torus结构网络 

分 类 号：TN384[电子电信—物理电子学]