We report the generation of complex soliton-like patterns in non-critically-phase-matched potassium niobate which occur in random spatial patterns from shot-to-shot. Up to five spots have been generated at input intensities of 10’s GW/cm2, many times the single soliton threshold. The mechanism which leads to the symmetry breaking required for the complex patterns is interpreted to be random noise imprinted on the input light.
Jankovic, L., Polyakov, S., Stegeman, G., Carrasco, S., Torner, L., Bosshard, C., Gunter, P. Complex soliton-like pattern generation in potassium niobate due to noisy, high intensity, input beams. "Optics express", Setembre 2003, vol. 11, núm. 18, p. 2206-2210.