D. Neshev, W. Krolikowski, D.E. Pelinovsky, G. McCarthy, and Yu.S. Kivshar

Transverse instability of vector solitons and generation of dipole arrays

Phys. Rev. Lett. 87, 103903 (2001)

Abstract:
We develop a theory of modulational instability of multi-parameter solitary waves and analyze the transverse instability of composite (or vector) optical solitons in a saturable nonlinear medium. We demonstrate theoretically and experimentally that a two-component soliton stripe breaks-up into an array of (2+1)-dimensional dipole-mode vector solitons, thus confirming a robust nature of those solitons as fundamental composite structures of incoherently coupled fields.

Keywords:
TRANSVERSE INSTABILITY, DIPOLE-MODE SOLITONS, OPTICAL VORTICES, ASYMPTOTIC METHODS FOR SOLITONS