Abstract:
A three-channel neodymium-glass laser system was developed. This system emitted quasicontinuous pulses of 10–3 sec duration. The output energy of the system was ~10 kJ and the radiation power density on a target zone of over 0.5 cm in size was 106–108 W/cm2. A high-power single-channel laser with a high directionality of the radiation was constructed using a telescopic resonator and a resonator with a confocal lens system. The output energy of this laser was ~ 4 kJ and the duration of the output pulses was 0.8·10–3 sec. The angular divergence of the output radiation was 3·10–4 rad. When this radiation was focused by a system composed of long-focus and short-focus lenses, the average (during a pulse) radiation power density in the focal plane was ~ 1011 W/cm2.