Optimization studies of optical and power performances of nuclear pumped lasers are performed. It is shown that the
laser mix pump rate speed-up from 7 to 30 m/s and laser channel width reduction from 2 to 1 cm allows increasing the
average specific energy input by the factor of 1.6 and narrowing the refraction factor measuring interval for 4 times.
The paper presents the results of investigations into formation of a laser beam energy density distribution in the near-field zone of an electric-discharge HF-laser with inductive discharge stabilization. The investigations were performed on HF-laser with an H2-SF6 active mixture for the interelectrode gaps of 34 mm and 52 mm. In the experiments were used the electrodes with 60 mm wide, formed by the plates with the thickness of 1 mm and the width of 60 mm or 120 mm, which were located at the angle 30° to the optical axis. The electrodes width of 30 mm was formed by the plates with width of 60 mm, located at the angle 30° to the optical axis. The laser energy density distribution in a laser cavity with plane mirrors and discharge emission intensity distribution over its cross section were studied experimentally. It was found that the laser beam profile in the near-field zone and the profile of discharge emission intensity distribution are close in shape. Locating electrode plates at the angle 30° it is possible to increase significantly a generation zone width. For both interelectrode gaps the full width of a laser energy density distribution at half maximum made up ~ 80% of the electrode width.