Moscow Region, Russia
Moscow Region, Russia

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Lobanov V.E.,Russian Quantum Center Skolkovo | Borovkova O.V.,Russian Quantum Center Skolkovo | Kartashov Y.V.,Russian Academy of Sciences | Szameit A.,Friedrich - Schiller University of Jena
EPL | Year: 2014

We address the localization of spatio-temporal wave packets in disordered waveguide arrays whereby temporal localization is mediated by nonlinearity while strong disorder provides Anderson statistical spatial localization. This combination of two different mechanisms allows localization to occur outside the range of parameters where diffraction, dispersion, and self-action have similar strengths, as required for the formation of standard spatio-temporal solitons. Under suitable conditions, nonlinearity is shown to weakly affect the statistically averaged spatial intensity distributions. In contrast, the temporal duration of the localized wave packets strongly depends on the level of disorder. © CopyrightEPLA, 2014.


Lobanov V.E.,Russian Quantum Center Skolkovo | Borovkova O.V.,Russian Quantum Center Skolkovo | Vysloukh V.A.,Universidad de Las Americas Puebla
EPL | Year: 2015

We considered the transfer of multi-spot optical patterns through disordered two-dimensional waveguide arrays with shallow refractive index modulation. In computer simulations, it was uncovered that statistically averaged output intensity distributions of complex inputs retain their structural features for suitable disorder strengths due to the Anderson-like localization of light. To characterize the quality of the input-output pattern similarity, we introduced corresponding criteria and analyzed their variations with the disorder level. Copyright © EPLA, 2015.

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