CONTINUOUS-WAVE DIODE-PUMPED Nd:KGdW/KTP LASER WITH INTRACAVITY FREQUENCY DOUBLING
Abstract
A CW and quasi-CW Nd:KGd(WO4)2/KTP laser with longitudinal diode-pumping at λ ~879 nm and intracavity frequency doubling in a three-mirror linear cavity has been created. At frequency doubling, superior results are achieved with a Ng-cut crystal by virtue of a simpler character of its thermal lens. At a CW pump power of 15.6 W, the power of the second harmonic generated at a wavelength of 533.6 nm amounts to ~0.9 W. At quasi-CW pumping, the laser generates with a duty cycle of 10 % and emits 10-20 ms long pulses, whose peak power reaches 2.25 W with an optical conversion efficiency of 9%. In the case of a Nр -cut Nd:KGd(WO4)2 crystal, the peak power of the second harmonic does not exceed 2.1 W.
About the Authors
A. A. Bui
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
U. I. Dashkevich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
V. A. Orlovich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
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