The spectral analysis and threshold limits of quasi-supercontinuum self-assembled quantum dot interband lasers

A theoretical model is used for explaining the quasi-supercontinuum interband emission from InGaAs/GaAs self-assembled semiconductor quantum dots lasers by accounting for both inhomogeneous and homogeneous optical gain broadening. The results have derived the optical gain broadening in the broadband lasers based on semiconductor quantum-confined nanostructure materials.