光开关矩阵中Crossbar光交换网络的研究  

Research on Crossbar Optical Switching Network in Optical Matrix Switches

作　　者：胡巧燕[1] 曹明翠[1] 罗风光[1] 

机构地区：[1]华中科技大学激光技术与工程研究院,湖北武汉430074

出　　处：《半导体光电》2002年第3期187-190,共4页Semiconductor Optoelectronics

基　　金：国家自然科学基金资助项目 (6 0 1770 2 3)

摘　　要：针对DWDM光网络光交叉连接中光开关矩阵对其光交换网络的要求 ,分析了目前常用的置换型和常规型Crossbar光交换网络的性能 ,提出了一种新型的寻径型Crossbar光交换网络及其光学实现方法。该新方法利用 1× 2和 2× 1光开关构造寻径扇出和寻径扇入网络 ,具有严格无阻塞性 ,插损低 ,并可实现对光信号卸载 。In accordance with requirements of optical matrix switches to optical switching network in OXC, properties of Crossbar optical switching network are analysed. A novel routing Crossbar optical switching network and its optical implementation are also presented, in which 1×2 and 2×1 optical switches were used to form routing fan in and fan out networks, respectively. This novel optical switching network is strictly non blocking with low insertion loss, and is capable of unloacling optical signals, so it can be widely used in medium scale optical matrix switches.

关 键 词：光开关 Crossbar光交换网络 OXC 

分 类 号：TN929.1[电子电信—通信与信息系统]