ABSTRACT: We report on a passively mode-locked Nd:YVO4 laser using a novel graphene oxide saturable absorber fabricated by vertical evaporation method. An 880 nm LD pump source
was used to reduce the thermal load of the laser crystal. At the pump power of 7.4 W, 1.2 W average output power of continuous
wave mode-locked laser with optical conversion efficiency of 16.2% was achieved. To the best of our knowledge, this is the
highest output power of passively mode-locked solid-state laser using graphene oxide saturable absorber. The repetition rate
of passively mode-locked pulse was 88 MHz with the pulse energy of 13.6 nJ.
Laser Physics 05/2012; 21(12):2072-2075. · 3.61 Impact Factor