title: Efficient femtosecond high power Yb:Lu(2)O(3) thin disk laser.
abstract: We demonstrate the first passively mode-locked thin disk laser based on Yb:Lu(2)O(3). The laser generates 370-fs pulses with 20.5 W of average power in a diffraction-limited beam (M(2) < 1.1). The nearly transform-limited pulses have a spectral bandwidth of 3.4 nm centered near 1034 nm. With slightly longer pulses (523 fs) we obtained 24 W of average power at a pump power of 56 W, resulting in an optical-to-optical efficiency of 43%, which is higher than for any previously mode-locked thin disk laser.
authors: S V
authors: SV
authors: Marchese
authors: C R E
authors: CR
authors: Baer
authors: R
authors: R
authors: Peters
authors: C
authors: C
authors: Kränkel
authors: A G
authors: AG
authors: Engqvist
authors: M
authors: M
authors: Golling
authors: D J H C
authors: DJ
authors: Maas
authors: K
authors: K
authors: Petermann
authors: T
authors: T
authors: Südmeyer
authors: G
authors: G
authors: Huber
authors: U
authors: U
authors: Keller