WDM动态光学交叉互连中同源串扰的研究

Study of the Same source Crosstalk of the Optical Cross connection in WDM All Optical Networks

研究了在波分复用（ＷＤＭ）全光网中，串扰对动态路由光交叉互连（ＯＸＣ）性能的影响。理论分析指出，在动态路由的ＯＸＣ中，由于信号光泄漏后经过不同的光路而造成的同源串扰对系统性能的影响要比其他类型的串扰影响大。还提出了一种新的解决方案。理论计算表明，这种优化后的ＯＸＣ结构能够有效地减小同源串扰的影响，从而以很小的硬件成本提高ＯＸＣ的性能。

In this paper, the impact of crosstalk on the optical cross connection of the WDM all optical networks is analyzed. The results show that in the dynamic OXC, there exits a kind of same wavelength crosstalk, the same source crosstalk. Its impact is more severe than that of other kinds of crosstalks. A new OXC structure to minimize its negative effect is proposed.