Observation of diffraction-managed discrete solitons in curved waveguide arrays
Szameit, Alexander; Garanovich, Ivan; Heinrich, Matthias; Minovich, Aliaksandr; Dreisow, Felix; Sukhorukov, Andrey; Pertsch, Thomas; Neshev, Dragomir; Nolte, Stefan; Krolikowski, Wieslaw; Tünnermann, Andreas; Mitchell, Arnan; Kivshar, Yuri
We observe the formation of discrete diffraction-managed optical solitons in arrays of periodically curved coupled waveguides for two types of modulated structures: laser-written arrays in silica glass with self-focusing nonlinearity and lithium niobate waveguide arrays with self-defocusing photorefractive nonlinearity. Our results demonstrate that, for both types of nonlinear response, soliton formation occurs after transitional self-induced beam broadening, being fundamentally different from...[Show more]
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|Source:||Physical Review A: Atomic, Molecular and Optical Physics|
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