Gasdynamic CO laser
AssigneeDeutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V.
InventorsHartwig Von Buelow, Eberhard Zeyfang
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Abstract
In order to improve a gasdynamic CO laser, comprising an excitation region, in which a laser gas is excited, a supersonic nozzle, through which the laser gas flows, a laser-active region penetrated by a resonator beam path and a closed laser gas circuit, in which the laser gas is cyclically conducted, such that this requires smaller pumping capacities and is therefore suitable for commercial uses, it is suggested that the supersonic nozzle be designed such that at a downstream outlet thereof the laser gas has a temperature in the region of approximately 80 to approximately 180 Kelvin.
Claims23
A gasdynamic CO laser comprising:
- an excitation region;
- means for exciting a laser gas supplied to said excitation region;
- a supersonic nozzle in series with said excitation region for receiving said laser gas;
- a laser active region in series with said supersonic nozzle and excitation region, said laser active region being penetrated by a resonator beam path;
- and
- a closed laser gas circuit for cyclically conducting said laser gas through said series coupled excitation region, supersonic nozzle and laser active region;
- wherein said supersonic nozzle has a cross sectional profile along its length for providing said laser gas at a temperature of approximately 80.degree. Kelvin to approximately 180.degree. Kelvin at an outlet thereof.
Dependencies are inferred from the claim text.