给出用以分析非线性包层多量子阱波导ＴＥ模光学非线性与双稳性的理论公式与计算方法。指出用均方根等效折射率法解本征方程是有效的简化方法。用本文方法分析了模折射率对波导总功率的依赖关系，芯区功率与总功率之间的双稳性以及模场分布与模折射率的关系，讨论了波导参数对光学非线性、双稳性及模场分布的影响。 The theoretical formulas and calculation methods for analyzing the TE nonlinear optical nonlinearity and bistability of a nonlinear cladding MQW waveguide are given. It is pointed out that using the root mean square equivalent refractive index to solve the eigenvalue equation is a simplified method. The dependence of mode refractive index on total waveguide power, the bistability between core power and total power and the relationship between mode field distribution and mode refractive index were analyzed by this method. The effects of waveguide parameters on optical nonlinearity, bistability Influence of the Properties and Mode Field Distribution.