title: Sub-80 fs dissipative soliton large-mode-area fiber laser.
abstract: We report on high-energy ultrashort pulse generation from an all-normal-dispersion large-mode-area fiber laser by exploiting an efficient combination of nonlinear polarization evolution (NPE) and a semiconductor-based saturable absorber mode-locking mechanism. The watt-level laser directly emits chirped pulses with a duration of 1 ps and 163 nJ of pulse energy. These can be compressed to 77 fs, generating megawatt-level peak power. Intracavity dynamics are discussed by numerical simulation, and the intracavity pulse evolution reveals that NPE plays a key role in pulse shaping.
authors.affiliation: Friedrich-Schiller-University Jena, Institute of Applied Physics, Albert-Einstein-Strasse 15, 07745 Jena, Germany. martin.baumgartl@uni-jena.de
authors.forename: Martin
authors.initials: M
authors.lastname: Baumgartl
authors.forename: Bülend
authors.initials: B
authors.lastname: Ortaç
authors.forename: Caroline
authors.initials: C
authors.lastname: Lecaplain
authors.forename: Ammar
authors.initials: A
authors.lastname: Hideur
authors.forename: Jens
authors.initials: J
authors.lastname: Limpert
authors.forename: Andreas
authors.initials: A
authors.lastname: Tünnermann