Title :
Second-harmonic generation by Nd/sup 3+/:YAG/Cr/sup 4+/:YAG laser pulses with changing state of polarization
Author :
Kir´yanov, A.V. ; Aboites, V. ; Il´ichev, N.N. ; Mel´nikov, I.V.
Author_Institution :
Centro de Investigaciones en Opt., Leon, Mexico
Abstract :
A theoretical model is presented for the second harmonic generated by the laser pulse which direction of polarization experiences time variations. These variations are shown to result in the large conversion efficiency and to affect the shape of the generated pulse. Our numerical simulations predict shortening of the harmonic pulse due to the temporal variation of the direction of polarization of the pump pulse.
Keywords :
Q-switching; chromium; laser cavity resonators; neodymium; optical harmonic generation; optical pulse generation; optical saturable absorption; solid lasers; Nd/sup 3+/:YAG laser; Q-switching; YAG:Cr; YAG:Nd; YAl5O12:Cr; YAl5O12:Nd; changing polarization state; direction of polarization; intracavity Cr/sup 4+/:YAG; large conversion efficiency; numerical simulation; pulse shape; pump pulse; saturable absorber; second-harmonic generation; temporal variation; Anisotropic magnetoresistance; Azimuth; Chromium; Couplings; Mirrors; Neodymium; Optical polarization; Optical pulse generation; Resonance; Stationary state;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 2000. Technical Digest
Conference_Location :
Kaua´i-Lihue, HI, USA
Print_ISBN :
1-55752-646-X
DOI :
10.1109/NLO.2000.883665
