title: Improving the brightness of a multi-kilowatt single thin-disk laser by an aspherical phase front correction.
abstract: We report on results obtained with an aspherical mirror to compensate for the phase front aberrations of a cw thin-disk laser with a single disk in the resonator. A record output power of 5 kW with a beam quality suitable for laser cutting (beam propagation factor M2=9.2) has been achieved.
authors.affiliation: Institut für Strahlwerkzeuge (IFSW), Universität Stuttgart, Stuttgart, Germany. david.blazquez@zsw‐bw.de
authors.forename: David
authors.initials: D
authors.lastname: Blázquez-Sánchez
authors.forename: Birgit
authors.initials: B
authors.lastname: Weichelt
authors.forename: Armin
authors.initials: A
authors.lastname: Austerschulte
authors.forename: Andreas
authors.initials: A
authors.lastname: Voss
authors.forename: Thomas
authors.initials: T
authors.lastname: Graf
authors.forename: Alexander
authors.initials: A
authors.lastname: Killi
authors.forename: Hans-Christoph
authors.initials: HC
authors.lastname: Eckstein
authors.forename: Marko
authors.initials: M
authors.lastname: Stumpf
authors.forename: Andre Lothar
authors.initials: AL
authors.lastname: Matthes
authors.forename: Uwe Detlef
authors.initials: UD
authors.lastname: Zeitner