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Nonlinear dynamics with higher-order modes in lithium niobate waveguide arrays |
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| Authors: | F Setzpfandt D N Neshev A A Sukhorukov R Schiek R Ricken Y Min Y S Kivshar W Sohler F Lederer A T??nnermann T Pertsch |
| Institution: | 1. Institute of Applied Physics, Friedrich-Schiller-Universit?t Jena, Max-Wien-Platz 1, 07743, Jena, Germany 2. Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, 0200, ACT, Australia 3. University of Applied Sciences Regensburg, Pr??feninger Strasse 58, 93049, Regensburg, Germany 4. Applied Physics, Universit?t Paderborn, Warburger Strasse 100, 33095, Paderborn, Germany 5. Institute for Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universit?t Jena, Max-Wien-Platz 1, 07743, Jena, Germany 6. Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Strasse 7, 07745, Jena, Germany |
| Abstract: | We present theoretical and experimental studies on nonlinear beam propagation in lithium niobate waveguide arrays utilizing higher-order second harmonic bands. We find that the implementation of the higher-order second harmonic bands leads to a number of new effects. The combined interaction of two second harmonic bands with a propagating fundamental beam can lead to a complete inhibition of nonlinear effects or to the formation of discrete spatial solitons, depending only on the wavelength of the fundamental wave. Furthermore we analyze the properties of discrete solitons, allowing for linear coupling of the second harmonic. Here we predict and demonstrate experimentally a power dependent phase transition of the soliton topology. |
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