Efficient second harmonic generation in β-barium borate by a diffraction-limited copper vapor laser

Year: 1992

Authors: Pini R., Salimbeni R., Toci G., Vannini M.

Autors Affiliation: Istituto di Elettronica Quantistica del Consiglio Nazionale Ricerche, Via Panciatichi 56/30, Firenze, 50127, Italy

Abstract: The diffraction-limited beam of a copper vapor laser emplo3dng a self-filtering unstable resonator was used to induce second harmonic generation in a nonlinear crystal of p-barium borate. Despite the moderate emission characteristics of our small-scale laser device (1.5-W average power, 25-kW peak power at 511 nm), we obtained average and peak power conversion efficiencies of approximately 20 and 30%, respectively, which improved on the previously reported results by a factor of 2.

Journal/Review: APPLIED OPTICS

Volume: 31 (15)      Pages from: 2747  to: 2751

KeyWords: Copper vapor laser; P-barium borate; Second harmonic generation; Self-filtering unstable resonator
DOI: 10.1364/AO.31.002747

Citations: 7
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