Modeling of Quinary Structures zzyyxx SbAsNInGa 11 based on Strained Quantum Well

We studied the effect of the incorporation of nitrogen N(y%) and antimony Sb(z%) in ternary alloys GaInAs . Indeed, the incorporation of a weak composition of nitrogen causes a split of the conduction band into two sub bands while antimony causes the split of the valence band. Under the effect of this split, there is reduction of the bandgap, which is very interesting to obtain the emission wavelength of 1.55μm. We also studied the effect of the strained on the band structure. The energy of carriers confinement and the emission wavelength depending on the thickness of the active layer have been determined for different alloy compositions In%, N% et Sb% taking into consideration the influence of strained, temperature and well width. This study allows us to choose structures to improve VCSEL's diodes for fiber optic communications.