GaInNAs QW with GaNAs intermediate layer for long wavelength laser

In this paper, we propose a structure, the GaInNAs QW with GaNAs intermediate layer (IML) which shows better performance in the optical properties as compared to the commonly used GaInNAs-GaAS rectangular quantum wells. The simulation software PICS3D is used in this work. Photoluminescence peak wavelength of 1327-nm GaInNAs-GaNAs IML laser has been achieved with a low threshold current 195mA and relatively high characteristic temperature, T₀ of 270K. The IML structure is a promising invention for long wavelength GaAs-based laser in for the application in the fiber optic communication.