Abstract
Self-frequency doubling crystals, which join simultaneously laser and non-linear proprieties, are promising materials for the development of visible low-power diode-pumped sources. Among them, Nd:GdCOB crystals have been extensively studied for its very good laser and nonlinear performances, as well as for its good physical properties.1,2 We have previously obtained 115 mW in the green with a diode-pumped 7 at% Nd-doped GdCOB in a concave-concave cavity, for an absorbed pump power of 1.3 W at 812 nm.3 These results have led us to develop diode- pumped microchip lasers based on Nd:GdCOB. We present the fabrication and the evaluation of these new compact visible sources.
© 2002 Optical Society of America
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