title: Passively mode-locked Yb:KLu(WO4)2 thin-disk oscillator operated in the positive and negative dispersion regime.
abstract: We demonstrate a passively mode-locked femtosecond Yb:KLu(WO(4))(2) thin-disk laser oscillator. Chirped-pulse operation in the positive dispersion regime as well as solitary operation have been realized, and the laser performance of both configurations are compared. In the solitary mode-locking regime the output power exceeds 25 W in a diffraction-limited beam, and pulse durations as short as 440 fs at a 34.7 MHz repetition rate have been generated. For the first time we present a chirped-pulse operation of a thin-disk oscillator that yields a maximum average output power of 9.5 W with a Fourier limit of 450 fs.
authors.affiliation: Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany. palmer@iqo.uni-hannover.de
authors.forename: Guido
authors.initials: G
authors.lastname: Palmer
authors.forename: Marcel
authors.initials: M
authors.lastname: Schultze
authors.forename: Martin
authors.initials: M
authors.lastname: Siegel
authors.forename: Moritz
authors.initials: M
authors.lastname: Emons
authors.forename: Udo
authors.initials: U
authors.lastname: Bünting
authors.forename: Uwe
authors.initials: U
authors.lastname: Morgner