半导体激光器系统的动力学方程是研究混沌激光的重要理论基础，其计算精度直接决定了系统产生混沌激光的仿真可靠性。针对目前国际上普遍采用的光电场分解的两种方法，即光电场的振幅-相位分解与实部-虚部分解方法，本文分别对不同的半导体激光器系统进行了研究，并进行了对比分析。结果表明，两种数值计算方法在输出光复杂度低的情况下计算结果差异较小，但进入高复杂度时，两种方法的数值计算结果存在巨大的差异。分析表明，光电场采用实部-虚部分解的数值模拟精度更高，更适用于产生复杂度较高混沌激光的半导体激光器系统的研究。

The dynamic equation of the semiconductor laser system is a critical theoretical basis for investigating chaotic lasers, whose calculation accuracy directly determines the simulation reliability of the chaotic laser generated by the system. In this study, different semiconductor laser systems are evaluated and compared based on the two widely used methods of photoelectric field decomposition: amplitude-phase decomposition and real-imaginary part solution. The comparison shows that the computational results of both methods have a minimal difference in the case of low complexity of output light, but a significant difference exists in the case of high complexity. Furthermore, the numerical simulation of the photoelectric field using the real-imaginary part solution has higher precision and is more suitable than the amplitude-phase decomposition for analyzing semiconductor laser systems that generate chaotic lasers with higher complexity.