The method of solving of multimode lasingfrom unstable resonator with phase abberation of gained medium

The self-consistent problem of generation the unstable resonator on a few diffrent transversal modes with a phase inhomogeneous medium and distortions of mirrors' surfaces is considered. A developed numerical method is suggested for solving such problem. A used method allows to find stable solutions of this problem. The calculations of nonlinear multimode generation for strip confocal resonators with the fine-scale phase inhomogeneity were perfomed for the illustration of a suggested method.