Tt. Kajava et Al. Gaeta, INTRACAVITY FREQUENCY-DOUBLING OF A ND-YAG LASER PASSIVELY Q-SWITCHEDWITH GAAS, Optics communications, 137(1-3), 1997, pp. 93-97
A simple and compact all-solid-state green-pulse laser source is descr
ibed. A diode-pumped Nd:YAG laser is Q-switched by a GaAs saturable ab
sorber and intra-cavity frequency-doubled by a KTP crystal. At 3.7 W o
f pump power the device produces high-quality 20.5-mu J, 25-ns pulses
at a pulse repetition rate of 12 kHz. The dynamics of the pulse format
ion is described by rate equations and an energy-level model which acc
ounts for the various energy-transfer processes in GaAs.