Large-gain amplifier for subpicosecond optical pulses

Abstract
We report a novel amplifier for the subpicosecond pulses output of a colliding-pulse mode-locked ring dye laser The amplifier produces >30-μJ output Pulse at 100 Hz by using three stages of amplification pumped by a short-cavity XeCl excimer laser. pulse-width broadening, spectral shape, and beam quality are discussed.