title: Multicolor lattice solitons.
abstract: We report on the existence of multicolor solitons supported by periodic lattices made from quadratic nonlinear media. Such lattice solitons bridge the gap between continuous solitons in uniform media and discrete solitons in strongly localized systems and exhibit a wealth of new features. We discovered that, in contrast to uniform media, multipeaked lattice solitons are stable. Thus they open new opportunities for all-optical switching based on soliton packets.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain. azesh@ttk.ru
authors.forename: Yaroslav V
authors.initials: YV
authors.lastname: Kartashov
authors.forename: Lluis
authors.initials: L
authors.lastname: Torner
authors.forename: Victor A
authors.initials: VA
authors.lastname: Vysloukh