Midband solitons in an array of quadratically nonlinear cavities.
We predict the existence of discrete midband solitons in an array of coupled quadratically nonlinear cavities driven by an external optical field at the second harmonic. The tilted holding beam provides both subdiffractive propagation and maximum group velocity for the fundamental harmonic. This configuration allows for the existence of identical but counterpropagating midband solitons for the same system parameters. We study numerically the interaction dynamics of these solitons.
Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
Oleg
O
Egorov
Falk
F
Lederer
D017711:Nonlinear Dynamics; D055095:Optics and Photonics