Studies on a picosecond dye laser synchronously pumped by a mode-locked and Q-switched Nd：YAG laser

A picosecond dye laser synchronously pumped by an active mode-locked and Q-switched Nd:YAG laser is reported. Tunable laser pulses with pulse duration of 70ps, pulse energy of 0.1μJ and tunable range of 580～610 nm have been generated from this dye laser. The temporal and frequency characteristics of the laser, especially, the influences of the cavity length mismatch on the pulse duration and the center pulse wavelength are studied.