单端输入非线性波导耦合器的稳定性及其自开关效应

Instabilities and Self switching in a Nonlinear Directional Coupler

分析了单端输入非线性光波导耦合器的稳定性，给出了非线性耦合波方程的近似解析解，用近似解析解计算的结果与严格解的结果以及Ａ．Ｔ．Ｐｈａｍ等的近似结果进行了比较，数值分析表明本文的结果比Ａ．Ｔ．Ｐｈａｍ等的结果更接近严格解。

Instabilities and self switching in a nonlinear directional coupler with single input excitation are discussed. The approximate analytical solutions to the nonlinear coupling equation near the critical power are obtained.