SUBMICROSECOND RSD GENERATOR FOR PUMPING PULSED LASERS

A scheme of a submicrosecond pulse generator for pulsed laser pumping is described, which includes a high-frequency thyristor stabilizer, lo w-voltage heavy-current commutator based on a reversely switched dynis tor (RSD), a step-up pulse transformer, and a magnetic compression sys tem. The use of an RSD increases the efficiency of the generator and a llows it to be markedly lighter and smaller than purely thyristor anal ogs. The device is capable of producing 15 kV voltage pulses at a freq uency of 16 kHz with a 100-ns current pulse duration (FWHM) in the loa d and an average power of about 2 kW for a preionization system of a h igh-power CO2 laser, and 25-kV voltage pulses at a frequency below 1 k Hz, and a leading front duration of 150 ns for pumping a high-power ch emical laser.