Diode‐pumped CW Nd:SGG laser at 1070 nm

We report for the first time (to our knowledge) a diode-pumped Nd:SGG laser emitting at 1070 nm. A power of 1.23 W at 1070 nm has been achieved in continuous-wave (CW) operation with a fiber-coupled laser diode emitting 18.2 W at 806 nm. Intracavity second-harmonic generation (SHG) in CW mode has also been demonstrated with a power of 328 mW at 535 nm by using a LiB3O5 (LBO) nonlinear crystal. The green beam quality factor M2 was less than 1.22. The green power stability was less 2.5% in 4 hour.