[en] This section discusses the use of deuterium chloride gas and selenium vapor for the tripling of CO₂ laser radiation in a laser fusion driver system appropriate for power plant operation. Each laser module in such a system would deliver 50 to 100 kilojoules of energy in several nanoseconds or 10 to 30 terawatts of peak power. The aperture of power amplifier modules for such devices are 1 to 2 m² with the specific system design being determined by the choice of material (NaCl) or aerodynamic windows. In both cases, however, the output flux is several gigawatts per square centimeter and each beam diameter will exceed 30 cm