title: Diffusion stabilizes cavity solitons in bidirectional lasers.
abstract: We study the influence of field diffusion on the spatial localized structures (cavity solitons) in bidirectional lasers. We find threefold positive role of the diffusion: 1) it allows for the existence of solitons in cavities with equal losses for the two fields; 2) it increases the stability range of the individual (isolated) solitons; and 3) it reduces the long-range interaction between cavity solitons, allowing for the independent manipulation (writing and erasing) of individual structures.
authors.affiliation: Departamento de Física Aplicada, Escola Politècnica Superior de Gandia, Universitat Politècnica de València, Ctra. Nazaret-Oliva S/N, 46730-Grau de Gandia, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Pérez-Arjona
authors.forename: Víctor
authors.initials: V
authors.lastname: Sánchez-Morcillo
authors.forename: Javier
authors.initials: J
authors.lastname: Redondo
authors.forename: Kestutis
authors.initials: K
authors.lastname: Staliunas
authors.forename: Eugenio
authors.initials: E
authors.lastname: Roldán