2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85737In positive phase-mismatched SHG and normal dispersion, a gaussian spatio-temporal pulse transforms spontaneously into a X-pulse, underlies spatio-temporal compression and eventually leads to stationary 3-D propagation. Experimental and numerical data are providedPostdeadline CLEO/QUELS 2001 ConferenceOpticsSpace-time nonlinear compression and three-dimensional complex trapping in normal dispersiontext