Tunable Subpicosecond Pulse Generation from 535 to 590 nm by a Hybridly Mode-Locked Dye Laser

Abstract
Tunable subpicosecond pulses are stably generated in a new wavelength renge of 535-590 nm from a cw mode-locked dye laser system using rhodamine 110 and disodium fluorescein active dyes, employing combined passive and synchronous mode-locking. A minimum pulse width as short as 0.25 ps has been achieved around 560 nm. Streak camera observations of the temporal profiles are given for both hybrid and purely synchronous mode-locking.