摘要 |
PURPOSE:To equalize the shape and intensity distribution of laser beams by severally making a plural pairs of main discharge electrodes oppose each other so that the mutual discharge directions of each of them are made to differ and arranging the main discharge electrodes into a vessel in which a laser gas medium circulates. CONSTITUTION:Two pairs of main discharge electrodes 10, 13 are disposed between resonator mirrors 4, 5 in a vessel 1 in which a laser gas medium circulates. The direction that a cathode 11 and an anode 12 for the electrode 10 face each other and the direction that a cathode 14 and an anode 15 for the electrode 13 face each other are displaced rectangularly, and the facing space of facing several electrode 10, 13 is used as a space which the resonance axes of the resonator mirrors 4, 5 pass. |