多级级联二阶非线性效应全光开关特性研究

Theoretical analysis of the all-optical switching characteristic via multisep χ2 cascading

研究了多级级联二阶非线性耦合方程组中各耦合常数之间的关系,在此基础上给出了多级级联二阶非线性耦合方程的解析解。该方法实现了基频波对三次谐波全开全关的控制,讨论了各个参数对信号光功率的影响。

A theoretical method was used to study the rdations between the couple indexes in the couple mode equations. Based on the relations the aralytical results for the equations were given. This method realized the control of third - harmonic by adjusting the fundamental wave amplitude or the wave vector mismatches. Finally, the dependence of the signal power on every parameters were given on the figures.