论文信息 - Nonlinear guided waves coupled nonlinearly in a planar GaAs/GaAlAs multiple quantum well structure

Nonlinear guided waves coupled nonlinearly in a planar GaAs/GaAlAs multiple quantum well structure

A nonlinear guided‐wave concept and nonlinear coupled‐wave equations are used to study numerically the coupling characteristics of two planar waveguides in a GaAs/GaAlAs multiple quantum well structure with self‐defocusing nonlinearities. Both the mode‐intensity‐dependent critical power and the coupling length are calculated for the first time using the nonlinear field distributions. An optically controlled modulation/switching behavior is predicted.

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