Dipole-mode vector solitons in anisotropic photorefractive media

Stable dipole-mode vector solitons in photorefractive (PR) crystals are stu died, both in numerical simulations and in experimental investigation. Nume rically exact multi-humped solitary solutions to the propagation equations of two incoherently coupled beams in PR media with an anisotropic nonlocal material response are found. A continuous set of dipole-mode vector soliton s, ranging from the solitons with negligible dipole-mode contribution to th e solitons with negligible ground mode contribution, is identified. The res ults are compared with experimental data. (C) 2001 Published by Elsevier Sc ience B.V.