Observation of higher-order solitons in defocusing waveguide arrays.
We observe experimentally higher-order solitons in waveguide arrays with defocusing saturable nonlinearity. Such solitons can comprise several in-phase bright spots and are stable above a critical power threshold. We elucidate the impact of the nonlinearity saturation on the domains of existence and stability of the observed complex soliton states.
Smirnov
Eugene
E
Institute of Physics and Physical Technologies, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany. E.Smirnov@pe.tu-clausthal.de
Rüter
Christian E
CE
Kip
Detlef
D
Kartashov
Yaroslav V
YV
Torner
Lluis
L