Continuous-wave high power green generation by intracavity frequency doubling of Nd-based thin-disk lasers

High-power visible laser sources were realized by using Nd-based media in thin-disk geometry. The optical pumping was performed with diode lasers at 0.81 mum. To the best of our knowledge, for the first time pumping at 0.88 mum into the
⁴
F
_3/2
level was also employed for Nd-vanadates for such a scheme. Improved performance are expected by optimizing various parameters of the laser configuration and, especially for pumping into the
⁴
F
_3/2
emitting level, by using a pump scheme with increased pump passes in the laser crystal.