|
|
|
Spatial-spectral vortex solitons in quadratic lattices
Z. Xu and A. A. Sukhorukov,
Opt. Lett. 34, 1168-1170 (2009).
[Full-text PDF (1.2 Mb)]
[Online]
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.
Copyright © by the respective publisher.
This article may be downloaded for personal use only.
Any other use requires prior permission of the author
and the publisher.
|
|