We report what is believed to be the first experimental demonstration of the azimuthal self-breaking of intense beams containing a vortex phase dislocation into sets of optical spatial solitons in a quadratic nonlinear material. The observations were performed in a KTP crystal.
© 1998 Optical Society of America
Dmitri V. Petrov, Lluis Torner, Jordi Martorell, Ramon Vilaseca, Juan P. Torres, and Crina Cojocaru, "Observation of azimuthal modulational instability and formation of patterns of optical solitons in a quadratic nonlinear crystal," Opt. Lett. 23, 1444-1446 (1998)