title: Tm-based fiber-laser system with more than 200  MW peak power.
abstract: Tm-based fiber-laser systems are an attractive concept for the development of high-performance laser sources in the spectral region around 2 μm wavelength. Here we present a system delivering a pulse-peak power higher than 200 MW in combination with 24 W average power and 120 μJ pulse energy. Key components enabling this performance level are a Tm-doped large-pitch fiber with a mode-field diameter of 65 μm, highly efficient dielectric gratings, and a Tm-based fiber oscillator operating in the stretched-pulse regime.
authors.forename: Fabian
authors.initials: F
authors.lastname: Stutzki
authors.forename: Christian
authors.initials: C
authors.lastname: Gaida
authors.forename: Martin
authors.initials: M
authors.lastname: Gebhardt
authors.forename: Florian
authors.initials: F
authors.lastname: Jansen
authors.forename: Cesar
authors.initials: C
authors.lastname: Jauregui
authors.forename: Jens
authors.initials: J
authors.lastname: Limpert
authors.forename: Andreas
authors.initials: A
authors.lastname: Tünnermann
mesh_terms: D007834:Lasers; D055100:Optical Fibers; D013932:Thulium
chemical_list: D013932:Thulium