▎ 摘　　要

We reported graphene as a passive Q-switcher in a neodymium-doped lutetium vanadate (Nd:LuVO4) crystal laser. The maximum average output power, pulse repetition rate, and pulse width were 474 mW, 795 kHz, and 56.2 ns, respectively, with the graphene used as the passive Q-switcher by using its saturable absorbing property and with its substrate SiC used as the output coupler by using its high refractive index. Our results illustrate the feasibility of using graphene as a Q-switcher for solid-state lasers. (C) 2011 The Japan Society of Applied Physics