具有二次非线性项的耦合Schr(o)dinger方程组的精确解

摘要

在非临界周[位]相匹配的条件下,光纤通讯中一些慢变包络的传播可借助于具有二次非线性项的耦合Schr(o)dinger方程组来描述,本文利用行波约化方法,导出了上述方程的的包络孤波解.%By means of traveling wave reduction method, the solitary wave envelopes of the coupled nonlinear Schr(o)dinger equations with quadratic nonlinearity describes the propagation of the slowly varying envelopes under conditions for noncritical phase matching in nonlinear fibres.