Robust propagation of two-color soliton clusters supported by competing nonlinearities.
We reveal numerically the remarkably robust propagation of quasistationary two-color soliton clusters in media with competing quadratic and cubic nonlinearities. We predict that such clusters carrying nonzero angular momentum can propagate over any practically feasible crystal length before they decay, even in the presence of input random perturbations.
Kartashov
Yaroslav V
YV
Institute of Photonic Sciences and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain.
Crasovan
Lucian-Cornel
LC
Mihalache
Dumitru
D
Torner
Lluis
L