| 摘要 |
PURPOSE:To miniturize a device and obtain good quality laser light with a high output, by providing a pair of mirrors on both ends of a discharge tube, and obliquely crossing the laser light way with the center axis of the discharge tube resulting in a constitution for a reciprocating-rotation, and then reducing the pressure loss of a laser midium. CONSTITUTION:Laser light can be thinned and lengthened, and the laser output of single mode can be obtained by constituting mirrors provided on both ends of a discharge space 13 so that the optical axis may obliquely cross with the center axis of a discharge tube 10 and reciprocating-rotates in the discharge space 13 while reflected by the both end mirrors. Since the sectional area of the cylindrical discharge space 13 which is the passage of the laser medium is large, even with a high speed of the laser medium, the medium can be passed in a state that the pressure loss is extremely small. There fore, the window pressure required to a blower 17 is sufficient in a small power. For the device itself, one discharge tube 10 is used, and electrodes used therefor are also sufficient in a pair. Accordingly, the assembly-adjustment is facilitated, and the number of mirrors can be reduced.
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