Spontaneous 2D modulation instability in second harmonic generation process |
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| Authors: | Michaë l Delqué ,Gil Fanjoux,Marc Haelterman |
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| Affiliation: | a Service OPERA-photonique, CP194/5, Université Libre de Bruxelles U.L.B., Avenue F.D. Roosevelt, 1050 Bruxelles, Belgiumb Département d'Optique P.M. Duffieux, Institut FEMTO-ST, Université de Franche-Comté, CNRS UMR 6174, F-25030 Besançon, France |
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| Abstract: | Two-dimensional modulation instability (2DMI) is experimentally demonstrated in a classical second harmonic generation setup. The spatial spectrum is measured and reveals typical 2DMI bands, in agreement with the analytical MI model. These observations are confirmed by (2 + 1)D numerical simulations. |
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| Keywords: | Second harmonic generation Modulation instability Quadratic soliton |
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