Sub-nanosecond Nd:Lu0.61Gd0.39VO4 microchip laser

摘要

We report the fabrication and operation of a single-to-three-mode, sub-nanosecond passively Q-switched Nd:Lu0.61Gd0.39VO4/Cr4+:YAG microchip laser, which exhibits changes in mode structure with increasing incident pump power. The laser exhibits longitudinal mode oscillations with a partial transverse mode overlap. The shortest pulse duration, highest pulse energy and peak power observed are 646ps, 8.7 mu J and 13.5kW, respectively.