Two-color Platicons in χ(2) Optical Microresonators

We demonstrated numerically generation of two-color flat-top solitonic pulses, platicons, in quadratically nonlinear optical microresonators for both second harmonic generation and for the downconversion processes. It was shown that platicon excitation can be realized using pump amplitude modulation or controllable mode interaction approach. Excitation conditions and platicon generation domains were found for different generation methods, and properties of generated platicons were studied for different combinations of the medium parameters.