INVESTIGATION AND EVALUATION ON PULSE STACKERS FOR TEMPORAL SHAPING OF LASER PULSES

A sophisticated research device such as an advanced photo-cathode injector for a high energy acceleratorbased X-ray light source requires drive lasers with a flattop shape both in time and space in order to generate high-quality short electron beam bunches. The practical methods for temporal shaping, in particular in the picosecond or femtosecond regime, are quite limited. One simple way to shape laser pulses is pulse stacking by birefringent crystals. While the method itself has the great advantage of simplicity, the overall performance depends on many factors. In this paper, we will present both calculation analysis and the recent experimental study