Setzpfandt, FrankNeshev, DragomirSchiek, RolandTünnermann, AndreasPertsch, ThomasSukhorukov, AndreyKivshar, Yuri2016-06-1421 June 209781557528964http://hdl.handle.net/1885/103143We predict theoretically and observe experimentally multiband quadratic solitons in periodically poled lithium niobate waveguide arrays. We demonstrate an abrupt transition from unstaggered to staggered second harmonic phase profiles with increase of fundamental beam power.20102016-06-14