| 摘要 |
PURPOSE:To realize high efficiency of laser oscillation by installing a protruding stripes along the tube axis on the inner wall, of a discharge tube, corresponding with the end-egdes of metal electodes. CONSTITUTION:The inner diameter of a cylindrical discharge tube 1 is 200mm, and the radial thickness is about 3mm. Along the tube axis, four semi-columnar protruding stripes are formed on the inner wall part, of discharge tube, corresponding with the end-edges 2a, 3a of a pair of metal electrodes 2, 3 in the axial direction of external peripheral surface of the tube 1. The radial thickness of these parts only become thick, and the concentration of electric field can be avoided. Further, the tube wall of other parts do not obstruct power injection, so that laser beam can be led out with high efficiency. |
