100W Class Green 10Ps 280Μj Laser With M\u3csup\u3e2\u3c/sup\u3e≪1.4 Using Z-Slab Amplifier

A high-power green picosecond laser based on the â€Z-slab\u27 Nd:YAG amplifier is presented. The edge-pumped zigzag amplifier was designed to achieve high energy scaling with good beam quality. In a master oscillator power amplifier system 120 W average power was produced at 1064 nm, which was frequency doubled to 84 W at 532 nm. The maximum pulse energy was 400 μJ at 1064 nm and 280 μJ at 532 nm. The repetition rate was variable from 250 to 1000 kHz with M2 \u3c 1.4. In burst mode with 1-10 pulses, over one millijoule total burst energy was demonstrated at 1064 nm

Femtosecond pulse generation at 50 W average powers from an Yb:KYW-Yb:YAG planar-waveguide MOPA

An Yb:YAG planar-waveguide power amplifier seeded by an Yb:KYW master oscillator is reported. The system produced 700-fs pulses at 1032 nm at average output powers of 50 W and a frequency of 53 MHz