Breitkopf, S.S.BreitkopfKienel, M.M.KienelHoffmann, A.A.HoffmannMüller, M.M.MüllerKlenke, A.A.KlenkeEidam, T.T.EidamLimpert, J.J.Limpert2022-03-142022-03-142019https://publica.fraunhofer.de/handle/publica/41075410.1109/CLEOE-EQEC.2019.8872162State-of-the-art ultrafast materials processing applications impose strong requirements on the driving laser systems. For novel ablation schemes GHz-bursts are necessary to operate ideally [1,2]. Additionally, fast modulation and control of these pulse trains is required allowing for both high-power operation (kW of average powers and mJ pulse energies) and, ideally, pulse-to-pulse amplitude control. Here we present novel solutions to address these demands based on fiber-laser technology and coherent beam combination.en620conference paper