Slow-light spatial solitons.
We numerically and experimentally report the observation of slow-light spatial solitons in a Kerr medium owing to light amplification by stimulated Raman scattering. This was achieved in a CS2 nonlinear planar waveguide that possesses both a strong self-focusing nonlinearity to generate the spatial Raman soliton and a Raman susceptibility sharp enough to induce the slow-light process simultaneously. We show that the Raman Stokes component is optically delayed by more than 120 ps for a 140 ps Raman pulse duration and only 3 cm of propagation length, while propagating as a spatial soliton beam.
Fanjoux
Gil
G
Institut FEMTO-ST Département d'Optique PM Duffieux UMR CNRS-Université de Franche-Comté no 6174, Route de Gray 25030 Besançon Cedex, France.
Michaud
Jérémy
J
Maillotte
Hervé
H
Sylvestre
Thibaut
T