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.
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