通过二维实映射研究非线性Kronig Penney超晶格中的波输运特性 ,数值计算得到波矢一定情况下不同非线性系数的映射图、以及非线性系数一定情况下不同波矢的映射图 .非线性Kronig Penney超晶格中的非线性 ,对超晶格中波函数的Bloch波矢有明显的调节作用 .随着非线性系数的增大 ,映射图由周期函数的有限个分立点变为准周期函数的一条闭合轨道、以及有规则或无规则的点分布 The two-dimensional real mapping is used to study the wave transport characteristics in nonlinear Kronig Penney superlattices. The maps of different nonlinear coefficients under certain wave vectors and the wavemaps with different nonlinear coefficients are obtained numerically. The nonlinearity in the nonlinear Kronig Penney superlattice has a significant effect on the Bloch wave vector of the wave function in the superlattice. As the nonlinear coefficient increases, the map changes from a finite number of discrete points of the periodic function to A closed orbit of a quasi-periodic function, with regular or random point distributions