title: Tunable pulses from below 300 to 970 nm with durations down to 14 fs based on a 2 MHz ytterbium-doped fiber system.
abstract: A noncollinearly phase-matched optical parametric amplifier pumped by a commercial 2 MHz fiber laser is presented and discussed. The pump system allows the direct generation of a seed continuum from a sapphire plate. Clean pulses with up to 860 nJ energy and down to 14 fs pulse length can be obtained over a fundamental tuning range from 620 to 970 nm. Conversion by second- and third-harmonic generation as well as sum frequency mixing results in an extended tuning range down to well below 300 nm.
authors.affiliation: Lehrstuhl für BioMolekulare Optik, Department für Physik, Ludwig-Maximilians-Universität, Oettingenstrasse 67, 80538 München, Germany
authors.forename: Christian
authors.initials: C
authors.lastname: Schriever
authors.forename: Stefan
authors.initials: S
authors.lastname: Lochbrunner
authors.forename: Patrizia
authors.initials: P
authors.lastname: Krok
authors.forename: Eberhard
authors.initials: E
authors.lastname: Riedle