We introduce discrete vortex solitons and vortex breathers in circular arrays of nonlinear waveguides. The simplest vortex breather in a four-waveguide coupler is a nonlinear dynamic state changing its topological charge between +1 and -1 periodically during propagation. We find the stability domain for this solution and suggest an all-optical vortex switching scheme.
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - Jun 20 2011|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics