We introduce the concept of multipole spatial optical vector solitons associated with higher-order guided modes trapped by a soliton-induced waveguide in a bulk medium. Such stationary localized waves include previously predicted vortex- and dipole-mode vector solitons and also describe new higher-order vector solitons and necklace-type beams. We present the theoretical and experimental results of the structure, formation, and instability development of the quadrupole vector solitons.
© 2001 Optical Society of America
Anton S. Desyatnikov, Dragomir Neshev, Elena A. Ostrovskaya, Yuri S. Kivshar, Wieslaw Krolikowski, Barry Luther-Davies, Juan J. García-Ripoll, and Víctor M. Pérez-García, "Multipole spatial vector solitons," Opt. Lett. 26, 435-437 (2001)