Cavity-dumped Yb:YAG ceramic in the 20 W, 12 mJ range at 6.7 ns operating from 20 Hz to 5 kHz with fluorescence feedback control.

Increasing data acquisition rates in metrology applications based on optical parametric oscillators (OPOs) can accelerate measurement processes. To achieve this, flash-lamp systems with low pulse repetition frequencies of 10-100 Hz used as a pump source for the OPOs could be replaced by diode-pumped solid-state lasers in the kHz range. We demonstrate a 969 nm pumped Yb:YAG ceramic laser yielding 21.