一种灵活扩充的分块式纵横制光互连网络  

A Scalable Optical Separated Crossbar Network

作　　者：饶斌[1] 曹明翠[1] 罗风光[1] 万安君[1] 徐军[1] 

机构地区：[1]华中理工大学激光技术国家重点实验室

出　　处：《光学学报》1997年第12期1729-1734,共6页Acta Optica Sinica

摘　　要：提出了一种新型的具有灵活扩充能力的分块式纵横制（Ｃｒｏｓｂａｒ）光互连网络体系结构，并给出了该网络在最大扩充时光学子系统的物理实现及相应的一些实验结果。该体系结构中可采用自电光效应（ＳＥＥＤ）器件作为高速光调制器，采用在单块ＧａＡｓ基片上集成的场效应晶体管－自电光效应器件（ＦＥＴ－ＳＥＥＤ）作为逻辑光开关器件。这种分块式网络体系结构，可以灵活地采用编码规则和选择一块、二块或四块场效应晶体管－自电光效应器件来提供可扩充的光接收模块的数目，解决了常规纵横制网络不易扩充的问题。但该种网络的最大规模为３２×３２。这种网络体系结构用在构造分布式多个计算机组成的网络计算应用中特别理想，在同步数字系列交叉互连系统的交叉连接矩阵的实现中也很有竞争力。A novel, flexibly scalable optical separated Crossbar network configuration is proposed. Optical sub system is physically implemented. We present experimental results of the optical sub system. Network configuration of separated Crossbar employs the SEED devices as high speed optical modulators and the FET SEED device integrated on a single GaAs chip as optical logic array. This configuration solves the problem that a Crossbar is hardly scalable by employing flexible code rule and one, two or four FET SEED chips to provide scalable optical channel receivers. But the size of the separated Crossbar is limited within 32×32. This network configuration is especially promising in network computing application based on distributed computers. And it is competitive in realization of Cross connect matrix of SDH Cross connect system.

关 键 词：光互连网络 纵横制 自由-光效应 

分 类 号：O438[机械工程—光学工程]