量子阱激光器以其优良的性能,成为光通信领域的一种重要光源。在量子阱激光器模型中引入中间过渡态,能更完整地描述阱中载流子的输运过程。对基于三层速率方程的单量子阱激光器电路模型进行模拟分析,探讨了过渡态在载流子输运过程中的作用。其模型仿真的结果对器件设计及不同模型的选用具有十分重要的参考价值。 Quantum well laser with its excellent performance, become an important light source in the field of optical communications. Introducing an intermediate transition state into the quantum well laser model can more fully characterize carrier transport in the trap. The single quantum well laser circuit model based on the three-layer rate equation is simulated and analyzed, and the role of the transition state in carrier transport is discussed. The result of model simulation has very important reference value for device design and selection of different models.