Performances of repetition-rated output of multi-segment-aperture solid-state lasers

Based on multi-segment apertures and gain media of Nd:YAG slabs, a new design of solid-state laser oscillator and its preliminary experimental results are presented.The output characteristics of the laser are researched. 2×1 multi-segment apertures and gain media of Nd:YAG slabs module are applied to the laser which is supplied by a 60 kW battery-based power supply, which adopts a pattern of constant current discharge with high current, and outputs a programmable control wave profile. The single pulse with output of 32 J was obtained, and the small signal gain was 0.047 5 cm-1. The output results show that it is a linear relation of the output energy and the pumping pulse duration during a single shot. And the output energy of 5 ms pulse nearly falls off 30% than that of the 1 ms pulse in