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本文根据一维势阱和应变效应以及能带填充效应的简单理论,提供了一种既简单又较准确的计算压缩应变量子阱激光器峰值增益波长的方法。给出影响峰值增益能量的两个主要因素,讨论了在压缩应变的情况下,Feimi-Dirac分布函数随注入载流子浓度的变化对峰值增益波长的影响,并且,以InGaAs/InGaAsP压缩应变量子阱激光器为例,利用广泛采用的Lorentzian线形函数,计算了不同的载流子注入浓度时的峰值增益波长。
Based on the simple theory of one-dimensional potential and strain effects and band-filling effects, this paper provides a simple and accurate method to calculate the peak gain wavelength of a compressively-stressed quantum well laser. Two main factors affecting the peak gain energy are given. The influence of the Feimi-Dirac distribution function on the peak gain wavelength with the injected carrier concentration under compressive strain is discussed. In addition, the InGaAs / InGaAsP compressive strain quantum Well lasers, for example, utilize the widely used Lorentzian linear function to calculate the peak gain wavelength for different carrier injection concentrations.