Cavity solitons as a resource for photonics

Cavity solitons (CS) are controllable localized light peaks on a low-intensity, homogeneous (or quasi -homogeneous) background and offer a variety of applications from optical memories to all-optical delay lines. It is shown here that CS in models of VCSELs with optical injection have properties like stability, robustness, velocity, and merging that are important in optical memories and delay lines. In particular, the paper demonstrates large velocities of CS propagation in the transverse space due to an injected frequency tuning and 2D CS merging in the presence of modulated injected phase for the optimization of memory operations.