We demonstrate, theoretically and experimentally, that dipole-mode vector solitons created in biased photorefractive media possess a number of anisotropy-driven properties, such as stability of a selected orientation, wobbling, and incomplete rotation, owing to the anisotropic nonlocal response of the photorefractive non-linearity. Such features are found for higher-order (multipole) vector solitons, and they are carefully verified in an experiment.
© 2001 Optical Society of America
Dragomir Neshev, Glen McCarthy, Wieslaw Krolikowski, Elena A. Ostrovskaya, Yuri S. Kivshar, Gabriel Fernandez Calvo, and Fernando Agullo-Lopez, "Dipole-mode vector solitons in anisotropic nonlocal self-focusing media," Opt. Lett. 26, 1185-1187 (2001)