Counterpropagating dipole-mode vector soliton
  We experimentally observe a counterpropagating dipole-mode vector soliton in a photorefractive SBN:60Ce crystal. We investigate the transient formation dynamics and show that the formation process differs significantly from the copropagating geometry. The experimental results are compared with fully anisotropic numerical simulations which show good qualitative agreement. 
Jochen Schroeder and Philip Jander and Cornelia Denz and Tobias   Richter and Kristian Motzek and Friedemann Kaiser