Energy and spectral characteristics of a supersonic electron-beam-sustained CO laser based on the first vibrational overtone and also operating in a selective regime

A numerical investigation is reported of the energy and spectral characteristics of the generation of the first vibrational overtone of the CO molecule in a high-power supersonic electron-beam-sustained CO laser operating under various conditions. It is shown that the electro-optical efficiency of this laser can exceed 30% for the first vibrational overtone. A study is also described of the efficiency of intracavity selection of the emission lines generated as a result of the fundamental and overtone transitions in the CO molecule. It is shown that the output power of the selected lines can be many times higher than the power of the corresponding lines generated by a free-running laser.