Supersonic CW HF Chemical Lasers with an Extended Active Medium

摘要

Spatial-energy, spectral, and optical characteristics of kilowatt supersonic cw HF chemical lasers of self-contained type with three-jet nozzle arrays using nozzle-nozzle-injector and nozzle-nozzle-nozzle configurations were experimentally studied. It was shown that such nozzle arrays enable one to form an active medium as long as 12.5 cm with a high optical quality. In a laser with a wide-aperture stable cavity, a laser beam with a nearly square cross section 11 * 10 cm in size was formed.