Observation of higher-order solitons in defocusing waveguide arrays |
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Authors: | Smirnov Eugene Rüter Christian E Kip Detlef Kartashov Yaroslav V Torner Lluis |
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Affiliation: | Institute of Physics and Physical Technologies, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany. E.Smirnov@pe.tu-clausthal.de |
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Abstract: | 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. |
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