title: Passively mode-locked Yb:CaF2 thin-disk laser.
abstract: We report on the first demonstration of a passively (SESAM) mode-locked Yb:CaF(2) thin-disk laser operating at a repetition rate of 35 MHz with close to diffraction-limited beam quality (M(2) ≈ 1.1) at an average output power of up to 6.6 W. The optical efficiency was 15.3%. Nearly transform limited pulses with a duration of 445 fs and a spectral width of 2.6 nm at full width half maximum (FWHM) were obtained at the maximum output power. This corresponds to a pulse-energy of approximately 0.19 μJ and a peak-power of 0.4 MW.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Dannecker
authors.forename: Xavier
authors.initials: X
authors.lastname: Délen
authors.forename: Katrin S
authors.initials: KS
authors.lastname: Wentsch
authors.forename: Birgit
authors.initials: B
authors.lastname: Weichelt
authors.forename: Clemens
authors.initials: C
authors.lastname: Hönninger
authors.forename: Andreas
authors.initials: A
authors.lastname: Voss
authors.forename: Marwan Abdou
authors.initials: MA
authors.lastname: Ahmed
authors.forename: Thomas
authors.initials: T
authors.lastname: Graf
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D053844:Lasers, Solid-State; D008027:Light