Cavity solitons in rocked class B lasers

Spatial solitons are localized structures that propagate through nonlinear media keeping their cross section unperturbed due to a balance between diffraction and nonlinearity. When they occur in optical cavities, they are called cavity solitons (CS). We present here a general method to obtain CS in any kind of lasers, including semiconductor lasers. We use the idea of "rocking" to generate a phase bistability in the system that leads to the formation of phase domains, labyrinths and dark-ring CS.