Application of photonic crystal for establishment monomode operation in VCSELs

Development of Internet with its basics component based on fiber-optical networks assumes the creation of new and further development of existing network services. The network capacity defined by modulation properties of lasers and modal dispersion can be increased due to the improving of the dynamical properties and the establishment of monomode operation of the lasers. Semiconductor oxide-confined Vertical-cavity surface emitting lasers (VCSELs) are leaders in their application in local communication systems due to their high-speed rates, wafer-scale integration, high efficiency and small radiated power. Further grow of the output power can be obtained with and increase of the oxide aperture mainly, and it leads to both the multimode regime and an increase of mode dispersion. The aim of the work is the theoretical consideration of the application of the defect in the two-dimensional photonic crystal for establishing the monomode operation of VCSELs.