Passive Q-switching of a diode-pumped Nd3+:KGd(WO4)2 laser was demonstrated using SrGd4(SiO4)3O and CaGd4(SiO4)3O crystals as saturable absorbers. The average output power of 40 mW was obtained with pulse repetition rate of~0.4 MHz.
© 2001 Optical Society of America
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