Injection lasers with a discretely scanned radiation pattern

A theoretical model is developed that describes self-locking of transverse modes in the cavity of an injection laser in the presence of a parabolic inhomogeneity of the refractive index along the p-n junction in the active region. A periodic discrete spatial displacement of the radiation pattern is obtained. The frequency and angle of scanning are estimated. All the results are in good agreement with experimental data obtained earlier.