Passively Q-switched 1.33 μm Nd:LuYSGG laser with V3+:YAG as the saturable absorber

A passively Q-switched 1.33 mu m Nd:Lu2YSc1.5Ga3.5O12 (Nd:LuYSGG) laser with V-3(+):YAG as the saturable absorber was demonstrated for the first time, with output couplers (OCs) of 5% and 10%. Under the absorbed pump power of 6.27 W, a maximum average output power of 0.39 W, a maximum pulse repetition rate of 41.6 kHz and a maximum pulse energy of 9.38 mu J were obtained with an OC of 5%, while the minimum pulse width of 20.8 ns was obtained with an OC of 10%. The results indicate that the Nd:LuYSGG crystal is a promising laser material for achieving short pulses with high energies at 1.33 mu m.