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在 WDM光网络中 ,光交叉连接 ( OXC)节点的串扰是限制网络规模的关键因素 .提高光开关的隔离度是降低 OXC串扰的一条途径 .文章比较了 3种不同结构的光开关矩阵的串扰特性 ,在此基础上对 OXC节点进行了优化设计 .改进后的 OXC节点的串扰性能大为改善 ,网络规模也因此而得到了极大地扩展
In WDM optical network, the crosstalk of optical cross-connect (OXC) nodes is the key factor to limit the network size.Improving the isolation of optical switches is one way to reduce the crosstalk of OXC.This paper compares the crosstalk of three kinds of optical switch matrix with different structures Based on which the OXC nodes are optimized.The crosstalk performance of the improved OXC nodes is greatly improved and the size of the network is greatly expanded