| 摘要 |
PURPOSE:To significantly improve the oscillation efficiency as compared with a conventional gas laser by disposing to project front and rear mirrors for forming a resonator into chambers. CONSTITUTION:When a glow discharge is executed by discharge electrodes 15, 16, laser medium gas sealed in a chamber 10 is excited to generate a laser oscillation between mirrors 13 and 14. Then, part of oscillation light is produced through the front mirror 14, the interior of a cylinder portion 12a of a holder 12, and a hole 20h formed at a support plate 20a of an angle regulating mechanism 20. Here, since the mirror 13, 14 are disposed to project into the chamber 10, a nondischarge range is small. Accordingly, the attenuation and the variation in the laser output due to the remainder of the gas of the nondischarge range can be abruptly reduced. |
