Artículos de revistas
Pseudo-nonlinear and athermal lensing effects on transverse properties of Cr(3+) based solid-state lasers
Fecha
2011Registro en:
OPTICS COMMUNICATIONS, v.284, n.7, p.1975-1981, 2011
0030-4018
10.1016/j.optcom.2010.12.014
Autor
TRAICHE, M.
GODIN, T.
FROMAGER, M.
MONCORGE, R.
CATUNDA, Tomaz
CAGNIOT, E.
AIT-AMEUR, K.
Institución
Resumen
Several experiments (time-resolved Z-scan experiments based on pulsed and CW pump lasers, time-resolved divergence diagnostics) have been performed to examine and clarify the question of the converging or diverging population lensing effect occurring in a Cr(3+):Al(2)O(3) ruby laser. The dynamics of the laser far-field divergence of such a laser indeed indicated initially a diverging effect while Z-scan measurements conclude to a converging one. The origin of this discrepancy is thus analysed and elucidated here by introducing the general concept of correlation collapse between the centre and the wings of a laser beam having some clipping. (C) 2010 Elsevier B.V. All rights reserved.