WDM光网络功率管理的数值模拟

本文提出了一种新的WDM光网络功率管理方案，即同时考虑同频串扰和自发辐射噪声的总功率。给出了方案的数学模型，并进行了仿真计算。结果表明，同频串扰对WDM光网络的规模和光信号的质量有着重要的影响。对于使用机械光开关的WDM关网，串扰对系统的影响程度主要取决于解复用器的隔离度。对串扰较小的网络，提高输出EDFA的增益和监测点光功率设定值会提高光信号质量。

Numerical Simulation of Power Management in WDM All-optical Network

In this paper,a new scheme of power management in WDM all optical network is proposed.In the total power equalization principle,we first consider both intraband crosstalk and ASE noise and give the analytical expressions.Through simulation calculation,the intraband crosstalk is found to be an important limitation to signal quality and network scale.For the WDM optical network that use mechanical switch,the impact of crosstalk depends mainly on the suppression value of DMUX.For low level crosstalk network,one can also improve the signal quality by increasing G out and P set .