Effects of the radiative recombination of carriers on the properties of a cavity soliton laser

Cavity Solitons (CSs) are intensity peaks of the coherent field emitted by optical resonators, generated through nonlinear light-matter interaction leading to self-localization within the cavity. CSs occur in broad area optical devices, under conditions where a patterned state of radiation coexists with a stable homogeneous background of low intensity. A favorable condition for the generation of CSs is the coexistence of two branches for the homogeneous stationary solution of the device, with the lower branch stable and the upper one affected by a pattern forming instability.