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arXiv · 0903.1890

Spatial-Spectral Vortex Solitons in Quadratic Lattices

Zhiyong Xu·Andrey A. Sukhorukov
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Abstract

We predict the existence of spatial-spectral vortex solitons in one-dimensional periodic waveguide arrays with quadratic nonlinear response. In such vortices the energy flow forms a closed loop through the simultaneous effects of phase gradients at the fundamental frequency and second-harmonic fields, and the parametric frequency conversion between the spectral components. The linear stability analysis shows that such modes are stable in a broad parameter region.

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Zhiyong Xu, Andrey A. Sukhorukov. 2009-03-11. Spatial-Spectral Vortex Solitons in Quadratic Lattices. https://doi.org/10.1364/ol.34.001168

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