... .Low cost 4.Easy operating APPLICATION:It is widely used in UV curing, micro-electronics, CD carving, laser medical treatment, scientific experiment,etc ... (stable pulse energy, peak, duration and period).Different rep. rate in the range of 1kHz-5kHz can be obtained by input ... Walk-off effect of Nonlinear crystals, the beam quality of UV laser is not so good as that of 1064/532nm ...