High-pressure pulsed electrical CO laser

The design and performance of a 16-l high-pressure pulsed electric discharge CO laser is reported. The gas was excited using the electron-beam sustained discharge technique. Cryogenically cooled gas flowed subsonically through a room-temperature cavity. Thermal isolation was provided by the formatio...

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Veröffentlicht in:J. Appl. Phys.; (United States) 1977-07, Vol.48 (7), p.2705-2711
Hauptverfasser: Boness, M. J. W., Center, R. E.
Format: Artikel
Sprache:eng
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Zusammenfassung:The design and performance of a 16-l high-pressure pulsed electric discharge CO laser is reported. The gas was excited using the electron-beam sustained discharge technique. Cryogenically cooled gas flowed subsonically through a room-temperature cavity. Thermal isolation was provided by the formation of free convection boundary layers on the warm flow walls which preserved the cryogenic gas temperature and maintained good medium uniformity. Beam-quality measurements indicated better than 1.5 times diffraction-limited peformance with single pulse energies of 1600 J and an electrical efficiency of approximately 40%. Comparisons are made between the actual laser performance and predictions based on the CO laser kinetics code.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.324121