Title :
Impact of wave-envelope dynamics on beam and pulse break up in X(2) media
Author :
Salerno, D. ; Minardi, S. ; Trull, J. ; Di Trapani, P. ; Valiulis, G. ; Varanavicius, A. ; Tomosauskas, G. ; Piskarskas, A. ; Trillo, S.
Author_Institution :
INFM, Insurbia Univ., Como, Italy
Abstract :
The purpose of this work is to show how the evolution of the input wave-envelope profile in phase matched second-harmonic generation is able to force a pure spatial or a pure temporal break-up, depending on the relative weight of diffraction versus group velocity dispersion. In order to clarify the underlying dynamics this study presents the results of 2+1 D numerical simulations (1 spatial, 1 temporal + 1 propagation dimensions). The plots give the spatio-temporal intensity map of the fundamental-wave, at different propagation lengths inside the crystal.
Keywords :
laser beams; optical harmonic generation; optical phase matching; optical solitons; X(2) media; beam break up; diffraction; fundamental-wave; group velocity dispersion; optical phase matching; pulse break up; second-harmonic generation; spatial break-up; spatial solitons; spatio-temporal intensity map; temporal break-up; temporal solitons; wave-envelope dynamics; Couplings; Diffraction; Electron traps; Energy exchange; Frequency conversion; Noise shaping; Pulse measurements; Pulse shaping methods; Shape; Solitons;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1313949
