| 摘要 |
PURPOSE:To make it possible to achieve high repetition operation, long service life and to operate with a large output and by providing a pair of conductor lids which are installed in the openings of both ends of a laser tube, each of which lids has a hole for permitting only a light beam in a state in which microwaves are blocked from passing; and a pair of mirrors which are disposed outside the openings of both ends of the laser tube and which constitute a resonator. CONSTITUTION:A microwave excited gas laser apparatus comprises a laser tube 2 placed inside a container 1; an output mirror 3 and a total-reflection mirror both which are disposed outside the openings of both ends of the laser tube and which constitutes a resonator; a magnetron 5, disposed outside the container 1, which magnetron is employed as a source for generating microwaves; a waveguide 6 which goes through the container 1 airtight, disposed to guide microwaves generated by this magnetron to the laser tube 2; an air blower for making the laser gas sealed inside the container 1 to be forcedly circulated in the direction, indicated by thick arrows 7, in which this laser gas intersects the laser tube 2. |
