| 摘要 |
PURPOSE:To obtain a laser oscillator equipped with a guide function of an oscillated laser and a front-facing adjustment function of a mirror inside the oscillator by a method wherein a branching means of an alignment beam is installed at an alignment-beam extraction device. CONSTITUTION:One pair of electrodes 2 and one pair of reflectors 3, 4 are installed inside a casing 1 where a vacuum pressure is kept and a laser medium is sealed; an alignment-beam extraction device for optical-axis adjustment use is installed; a laser oscillation beams 5 and a laser beam 6 for alignment use to be superposed on it are oscillated. This laser oscillator is constituted in such a way that a branching means of the alignment beam 6 is installed at said alignment-beam extraction device 10 and that an optical axis of the reflectors 3, 4 of the oscillator can be adjusted. For example, a beam splitter 10a, a total reflector 10b and a tiny hole 10c are installed at an He-Ne beam extraction device 10; an He-Ne beam 6 is branched into a beam 11 passing through the beam splitter 10a and into a beam 12 which is reflected by the beam splitter 10a and progresses into the oscillator. |
