200W Output Power At 10Ps From A Scalable Z-Slab Nd:Yag Laser

We demonstrate power scaling of an Nd:YAG picosecond master oscillator power amplifier system to over 200 W. The \u27z-slab\u27 amplifier design is a power scalable, edge-pumped zigzag slab amplifier architecture, and it is demonstrated here in two alternative multi-stage implementations at 1064 nm using a picosecond seed laser. In a simple design, an average power of 225 W was generated with up to 450 μJ pulse energy at 11 ps pulse duration. In a compact multi-pass design, 150 W was generated with M2 \u3c 1.75. © 2014 SPIE