Diode-side-pumped Nd:GGG laser at 1,105 nm and frequency-doubled laser at 552 nm

A high-power diode-side-pumped 1,105 nm Nd:GGG laser and a laser at 552 nm based on intracavity frequency doubling of 1,105 nm laser are demonstrated for the first time. A 26.8-W 1,105 nm laser continuous wave output was achieved under the incident pump power of 170 W. A LiB3O5 crystal is used for second harmonic generation of 1,105 nm laser. When the pump power was 170 W, the average output power at 552 nm of 7.3 W was obtained, corresponding to the optical conversion efficiency of 4.3 %. And the minimum pulse width is 181 ns with the pulse repetition rate of 10 kHz. The M (2) factors are measured to be 19.8 and 17.6 in the horizontal and vertical directions, respectively.