We numerically study the dynamics of two-dimensional spatial solitons on the top of an external umbrella-shaped potential in the cubic-quintic complex Ginzburg-Landau model. Unique scenarios of the dynamics of dissipative spatial solitons interacting with this potential are put forward, such as generation of straight-lined arrays (or “jets”), emission of either one necklace-shaped soliton array or several such soliton arrays, soliton evolution into an oscillatory mode, and soliton spreading. In addition, by changing the number of lateral planes of the external potential, keeping fixed the other parameters of the potential, the various scenarios of soliton dynamics can transform into each other. These results suggest possible applications to signal routing in all-optical information processing devices.
© 2011 Optical Society of America
Original Manuscript: October 25, 2010
Revised Manuscript: November 30, 2010
Manuscript Accepted: November 30, 2010
Published: February 1, 2011
Chengping Yin, Dumitru Mihalache, and Yingji He, "Dynamics of two-dimensional dissipative spatial solitons interacting with an umbrella-shaped potential," J. Opt. Soc. Am. B 28, 342-346 (2011)