title: Mode-locked Yb:YAG thin-disk oscillator with 41 µJ pulse energy at 145 W average infrared power and high power frequency conversion.
abstract: We demonstrate the generation of 1.1 ps pulses containing more than 41 µJ of energy directly out of an Yb:YAG thin-disk without any additional amplification stages. The laser oscillator operates in ambient atmosphere with a 3.5 MHz repetition rate and 145 W of average output power at a fundamental wavelength of 1030 nm. An average output power of 91.5 W at 515 nm was obtained by frequency doubling with a conversion efficiency exceeding 65%. Third harmonic generation resulted in 34 W at 343 nm at 34% efficiency.
authors.affiliation: Department of Physics and Center of Applied Photonics, University of Konstanz, 78465 Konstanz, Germany. dominik.bauer@de.trumpf.com
authors.forename: Dominik
authors.initials: D
authors.lastname: Bauer
authors.forename: Ivo
authors.initials: I
authors.lastname: Zawischa
authors.forename: Dirk H
authors.initials: DH
authors.lastname: Sutter
authors.forename: Alexander
authors.initials: A
authors.lastname: Killi
authors.forename: Thomas
authors.initials: T
authors.lastname: Dekorsy
mesh_terms: D000669:Amplifiers, Electronic; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007259:Infrared Rays; D053844:Lasers, Solid-State; D008904:Miniaturization; D009991:Oscillometry / Q000295:instrumentation*