Abstract
We demonstrated a high-power SHG green laser that utilizes a high-power Yb fiber laser and a Z-cut
Mg-doped stoichiometric LiTaO3. This high-power green laser has many advantages, such as
compactness, light weight, and low power consumption as well as full air cooling by a single pass
configuration. Furthermore, it has high beam quality and high-power stability.
The incident infrared light and the generated green light have high beam quality with M2 < 1.1 for
double emission to the air. These beams can be focused at same point with a near diffraction limit spot
size, and this laser is expected to be a new tool for laser processing.
