Abstract

The performance characteristics of a large-volume CO2 electric-discharge convection laser operating in a closed-cycle mode are described. The use of a combined dc and rf excitation field and aerodynamic stabilization techniques resulted in the attainment of a stable and homogeneous discharge. Operating in a master oscillator-power amplifier mode, continuous-output power levels greater than 20 kW have been achieved for extended periods of time, with a maximum optical power of 27.2 kW at an efficiency of 17.2%.

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