Intra-cavity frequency doubling of a Nd:YAG laser passively Q-switched by Cr/sup 4+/:YAG saturable absorber

Summary form only given. We report a diode-pumped Nd:YAG laser which was passively Q-switched by a Cr/sup 4+/:YAG saturable absorber (SA), and intra-cavity frequency doubled by a LiB/sub 3/O/sub 5/ crystal. The maximum green average power was 1.0 W, with the laser operating at 3.8 kHz repetition frequency.