Patent ID: 6744802
Filing Date: 2004-06-01
Classification: G03F,H01S

Abstract:
A laser oscillating apparatus for generating a laser beam by introducing electromagnetic waves into a laser tube filled with a laser gas through a plurality of slots formed in a waveguide wall,wherein said plurality of slots are formed in a long end face of said waveguide and arranged in first and second lines parallel with a central line in a longitudinal direction of the long end face, the slots in the first line are located at an interval equal to a wavelength of the electromagnetic waves within said waveguide, the slots in the second line are located at the interval equal to the wavelength, and positions of the slots in the first line are shifted by one half of the wavelength from positions of the slots in the second line in a direction parallel with the central line, thereby in-phase electromagnetic waves are supplied to said laser tube through said plurality of slots.