High-power ytterbium-doped fiber laser delivering few-cycle, carrier-envelope phase-stable 100 mJ pulses at 100 kHz

Shestaev, E.E.ShestaevHoff, D.D.HoffSayler, A.M.A.M.SaylerKlenke, A.A.KlenkeHädrich, S.S.HädrichJust, F.F.JustEidam, T.T.EidamJójárt, P.P.JójártVárallyay, Z.Z.VárallyayOsvay, K.K.OsvayPaulus, G.G.G.G.PaulusTünnermann, A.A.TünnermannLimpert, J.J.Limpert2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26102910.1364/OL.45.000097We present a carrier-envelope phase (CEP)-stable Yb-doped fiber laser system delivering 100 mJ few-cycle pulses at a repetition rate of 100 kHz. The CEP stability of the system when seeded by a carrier-envelope offset-locked oscillator is 360 mrad, as measured pulse-to-pulse with a stereographic above-threshold ionization (stereo-ATI) phase meter. Slow CEP fluctuations have been suppressed by implementing a feedback loop from the phase meter to the pulse picking acousto-optic modulator. To the best of our knowledge, this is the highest CEP stability achieved to date with a fiberbased, high-power few-cycle laser.enfiber lasersystem stabilityYtterbiumabove-threshold ionizationacousto-optic modulator620High-power ytterbium-doped fiber laser delivering few-cycle, carrier-envelope phase-stable 100 mJ pulses at 100 kHzjournal article