Passive Q-switching of a diode-pumped Nd:YAG laser is demonstrated using a
GaAs wafer as saturable absorber as well as output coupler. Q-switched puls
es with a pulse duration of 264 ns, pulse energy 91 mu J and pulse repetiti
on rate 43 kHz were produced. The characteristics of this passive Q-switchi
ng method were studied. (C) 1999 Elsevier Science B.V. All rights reserved.