"Tunable pulses from below 300 to 970 nm with
durations down to 14 fs based on a 2 MHz
ytterbium-doped fiber system"C. Schriever, S. Lochbrunner, P. Krok, and E. Riedle
Opt. Lett. 33, 192 (2008)
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.
BMO authors (in alphabetic order):