title: Monotonically chirped pulse evolution in an ultrashort pulse thulium-doped fiber laser.
abstract: We report on monotonically positively chirped pulse operation of a hybridly mode-locked thulium fiber laser. Dispersion management was realized with a small-core, high-NA fiber providing normal dispersion in the 2 μm wavelength region. The laser delivered pulses with 0.7 nJ energy at the 1927 nm center wavelength and sub-500-fs pulse duration after compression.
authors.affiliation: Laser Zentrum Hannover eV, Hannover, Germany. f.haxsen@lzh.de
authors.forename: Frithjof
authors.initials: F
authors.lastname: Haxsen
authors.forename: Dieter
authors.initials: D
authors.lastname: Wandt
authors.forename: Uwe
authors.initials: U
authors.lastname: Morgner
authors.forename: Jörg
authors.initials: J
authors.lastname: Neumann
authors.forename: Dietmar
authors.initials: D
authors.lastname: Kracht