Hw. Bruesselbach et al., LOW-HEAT HIGH-POWER SCALING USING INGAAS-DIODE-PUMPED YB-YAG LASERS, IEEE journal of selected topics in quantum electronics, 3(1), 1997, pp. 105-116
We report to our knowledge the highest to date quasi-CW output power,
600 W and pulse energy, >1 J, for an InGaAs diode-pumped Yb:YAG laser.
In separate preliminary results, we have also obtained 225 W of avera
ge output power under true CW diode pumping. This performance was obta
ined using a laser head designed to be part of a master oscillator pow
er amplifier (MOPA) operating at 3 kW. We summarize why the diode-pump
ed Yb:YAG crystal laser is ideal for scaling to high average powers an
d the different approaches being pursued. We also report our latest re
sults for side-pumped rod devices.