Transformation of the light beams transverse structure upon coherent interaction in nonlinear interferometers

The theoretical and numerical modelling of the light beams transverse structure formation upon coherent interaction in the interferometers with resonant nonlinearity has been proposed. The analysis has been performed on the base of the modal theory for the scheme of counterpropagating beams in the ring cavity and for the scheme of oblique symmetrical incidence of two beams on the Fabry-Perot interferometer. Complex spatio-temporal evolution of the light beams structure, such as formation of bound states, symmetry breaking instability, asymmetrical self-oscillations has been demonstrated.