Title :
Q-switching and frequency doubling of solid-state lasers by a single intracavity KTP crystal
Author :
Taira, Takunori ; Kobayashi, Takao
Author_Institution :
Fac. of Eng., Fukui Univ., Japan
fDate :
3/1/1994 12:00:00 AM
Abstract :
The electrooptic characteristics of the KTP crystal are analyzed in detail and Q-switched operation of a diode-laser-pumped microchip Nd:YVO4 laser is reported using an intracavity KTP crystal. The KTP was used also as a frequency-doubling crystal in type II phase matching for generating pulsed green beams. Low loss and high efficiency characteristics were realized by eliminating two components, i.e., a Q-switching or a frequency-doubling crystal and a polarizer, in comparison with the conventional frequency-doubling configuration. Up to 15.4 W peak output and 18-ns width green power was obtained with 760-mW pumping power on the Nd:YV4 microchip, which corresponded to 616 times enhancement of the CW output power
Keywords :
Q-switching; electro-optical effects; integrated optics; neodymium; optical harmonic generation; optical pumping; potassium compounds; solid lasers; titanium compounds; yttrium compounds; 15.4 W; 760 mW; KTP; KTiOPO4; Q-switched operation; YVO4:Nd; continuous wave output power; diode-laser-pumped microchip Nd:YVO4 laser; efficiency characteristics; electrooptic characteristics; frequency-doubling crystal; generating pulsed green beams; loss; peak output; polarizer; pumping power; single intracavity KTP crystal; solid-state lasers; type II phase matching; width; Laser beams; Microchip lasers; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical polarization; Optical pumping; Power generation; Pump lasers; Solid lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
