Laser Performance of Nd:GGG Operating at 938nm

We report an efficient diode-pumped Nd-doped Gadolinium gallium garnet
(GGG) continuous-wave (CW) laser operating at 938nm. Laser action of
1.6at.% Nd-doped GGG crystals with different lengths and temperatures
are also investigated. The maximum output power of 620mW is obtained
at the incident pump power of 5.0W with a slope efficiency of 15%.