Second-harmonic generation from a picosecond Ti:Sa laser in LBO: Conversion efficiency and spatial properties

Year: 2002

Authors: Ramazza PL., Ducci S., Zavatta A., Bellini M., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
INFM, Sezione di Firenze;, 50125 Florence, Italy;
Ecole Normale Superieure de Cachan, 94235 Cachan Cedex, France;
Dipartimento di Sistemi e Informatica, Università di Firenze, Italy;
Dipartimento di Fisica, Università di Firenze, Italy
Univ Florence, Dipartimento Fis.

Abstract: We report an experimental study of the second harmonic generated in type I interaction by a Ti:Sa laser operating in the picosecond regime at 786 nm in LBO crystals. A joint characterization of the dependence of conversion efficiency and spatial beam quality on crystal length and degree of pump focusing is given. A simple heuristic formula, reproducing over a broad range of parameters the predictions of classical Boyd-Kleinman theory, is derived and compared with the experimental results. The conditions for the optimization of the generation process using an elliptically focused pump beam are quantitatively evaluated.


Volume: 75 (1)      Pages from: 53  to: 58

KeyWords: Electric field effects; Laser beam effects; Light polarization; Light propagation; Optimization; Pumping (laser); Refractive index; Second harmonic generation, Spatial beams, Solid state lasers; External enhancement cavity; Sapphire laser; Ultraviolet; Beta-bab204
DOI: 10.1007/s00340-002-0945-1

Citations: 11
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