Femtosecond optical pulse dye amplifier

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Abstract

We constructed experimentally the four-stage dye amplifier pumped by a Q-switched frequence-doubled Nd:YAG laser with repetition rate of 10 Hz. It amplified 43 fs optical pulses to energy of 100μJ and pulsewidth of 125 fs. Optical pulses with pulsewidth of 70 fs and peak power of 1 GW has been generated using a four- prism sequence compressor.