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采用相干隧穿破坏(CDT)理论和自囚禁(self-trapping)效应相结合的方法实现光信号的交叉连接功能.在标量场和傍轴近似下,进一步采用紧束缚近似,得到周期性调制光纤中光信号传播的耦合模方程组.只考虑相邻光纤耦合作用情况下,数值模拟全光交叉连接功能实现过程并获得各种变换所需条件.在器件输出端引入可调谐滤波器可实现光信号的广播发送、光路变换和上下路等功能,能推广到任意N×N光交叉连接设计中,有效地解决波分复用光网络中光信号时延和容量需求问题.
The cross-connect function of optical signals is achieved by a combination of coherent tunneling damage (CDT) theory and self-trapping effect. In the scalar field and paraxial approximation, the tight-binding approximation is further used to obtain the periodic modulated optical fiber The coupling mode equations propagating in medium optical signal.Only considering the coupling effect of adjacent optical fibers, the realization process of all-optical cross-connect function is numerically simulated and all the necessary conditions are obtained.A tunable filter is introduced at the output of the device to realize the light Signal broadcast transmission, optical path conversion and uplink and downlink and other functions, can be extended to any N × N optical cross-connect design, effectively solve the optical signal delay and capacity requirements in the WDM optical network.