D+G was able to demonstrate a regenerative amplifier with a pulse energy of 140 mJ at 1 kHz repetition rate. The results were presented at this years ASSL conference in Shanghai.
Yb: YAG regenerative thin-disk amplifiers as an ideal pump and seed source for OPCPACLEO 2017, FW4D.3; 2017
Joerg Neuhaus, Florian Fink, Gregor Hehl, Mikhail Larionov, Robert Riedel, and Michael Schulz
Generation of high-energy femtosecond pulses by use of spectral broadening effects in Yb: YAG thin-disk regenerative amplifiersJOSA B, Vol. 34, Issue 5, pp. 959-967 (2017); 2017
Joerg Neuhaus, Florian Fink, Mikhail Larionov
180 fs Yb:YAG Thin Disk Regenerative Amplifier (P187)ICALEO, P187; 2016
Mikhail Larionov, Joerg Neuhaus, Johannes Trbola