1.55μm In_(1 - x - y) Ga_y Al_x As压缩应变量子阱激光器的近似阱宽和光增益公式(英文)

Approximate Well Width and Optical Gain Formulas of 1 .555μm In_(1-x-y )Ga_y Al_x As Compressively Strained Quantum- Well Laser

应用 Harrison模型和各向异性抛物带近似理论计算了 In1- x- y Gay Alx As压缩应变量子阱的能带结构 .为设计 1.55μm发射波长的激光器 ,对可能组分范围内材料的阱宽、微分增益、透明载流子浓度做了系统分析 。

Using Harrison's model and anisotropic parabolic approximation,the band structure of In1- x- y Gay Alx As compressively strained quantum wells is calculated.To design lasers with1.55μm wavelength,it is necessary to an- alyze the well width,differential gain,transparency carrier density and the characteristic gain for an arbitrary com- position.Some useful empirical formulas are also presented.