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分析了单量子阱激光器 ( SQW- LD)工作原理 ;阐述了载流子和光子在器件内部运动过程中 ,分别限制异质结构和量子阱之间引入过渡态 (准二维态 )的作用及必要性 .在此基础上 ,给出了完整的速率方程 .使用 Simulink软件建立了 SQW- LD的数值分析模型 .对 SQW- LD在阶跃驱动电流作用下载流子和光子浓度的建立过程、输出光功率与驱动电流之间的关系、小信号调制时的频率响应特性等进行了数值模拟分析 .文中提出的数学模型及分析结果可用于量子阱激光器的工艺完善和制作、光纤通信网络的模拟设计和分析
The working principle of single quantum well laser (SQW-LD) is analyzed. The effect of carriers and photons on the introduction of transition states (quasi-two-dimensional states) between the heterostructure and the quantum wells during the movement of carriers and photons The necessity and the complete rate equation are given.Based on the Simulink software, the numerical analysis model of SQW-LD is established.For the establishment process of SQW-LD carrier concentration and photon concentration under the step-driven current, the output The relationship between optical power and driving current, the frequency response of small signal modulation, etc. The mathematical model and the analysis results proposed in this paper can be used to perfect and manufacture the quantum well laser, and the analog design of optical fiber communication network And analysis