Observation of discrete gap solitons in binary waveguide arrays.
We report an experimental study of discrete gap solitons in binary arrays of optical waveguides. We observe self-focusing indicating soliton generation when the inclination angle of an input beam is slightly above the Bragg angle and show that the propagation direction of the emerging gap soliton is influenced by the effect of interband momentum exchange.
Morandotti
Roberto
R
Institute National de la Recherche Scientifique, Université du Quebec, Varennes, Quebec J3X 1S2, Canada.
Mandelik
Daniel
D
Silberberg
Yaron
Y
Aitchison
J Stewart
JS
Sorel
Marc
M
Christodoulides
Demetrios N
DN
Sukhorukov
Andrey A
AA
Kivshar
Yuri S
YS