A compact 20-pass thin-disk multipass amplifier stable against thermal lensing effects and delivering 330 mJ pulses with ${\mathbf{M}}^2<1.17$

Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed +11

We report on an Yb:YAG thin-disk multipass amplifier delivering 50 ns long pulses at a central wavelength of 1030 nm with an energy of 330 mJ at a repetition rate of 100 Hz. The be…