Nagy, T.T.NagyHädrich, S.S.HädrichSimon, P.P.SimonBlumenstein, A.A.BlumensteinWalther, N.N.WaltherKlas, R.R.KlasBuldt, J.J.BuldtStark, H.H.StarkBreitkopf, S.S.BreitkopfJójárt, P.P.JójártSeres, I.I.SeresVárallyay, Z.Z.VárallyayEidam, T.T.EidamLimpert, J.J.Limpert2022-03-062022-03-062019https://publica.fraunhofer.de/handle/publica/26079010.1364/OPTICA.6.001423The generation of three-cycle multi-millijoule pulses at 318 W power is reported by compressing pulses of a Yb-fiber chirped pulse amplifier in a 6 m long stretched flexible hollow fiber. This technique brings high-power lasers to the few-cycle regime.en620journal article