UV picosecond pulse amplification by a XeCl laser

Abstract

A UV-preionized discharge-pumped XeCl excimer laser effectively amplified the frequency-doubled picosecond (3–4 ps) pulses generated by a passively mode-locked flashlamp-pumped rhodamine 6G dye laser tuned to the 308-nm band. The peak power of the amplified pulse is 710 MW, and the net power gain is 151. The proposed scheme is promising for the construction of a scalable high-power ultrashort-pulse generator in the UV region.