Patent ID: 7050473
Filing Date: 2006-05-23
Classification: H01J,H01S

Abstract:
1. Pumping light source for laser-active media comprising: an outer member enclosing a gas discharge medium, said outer member being optically transparent, a first electrode acting as a cathode and having a first electrode end located within the outer member, the first electrode end being essentially cooled by thermal radiation, a second electrode acting as an anode and having a second electrode end located within the outer member, said outer member having a gas discharge section extending between the electrode ends facing one another, and said pumping light source being operated with a gas discharge having a predominantly diffuse arc attachment at the first electrode proceeding from an areally extended surface area located at the first electrode end, said gas discharge generating pumping light exiting through said gas discharge section, wherein the surface area has an extension greater than two thirds of an average cross-sectional surface area of the volume area at the first electrode end.