ORTHOGONAL EXCITATION-TYPE LASER OSCILLATOR

摘要

PROBLEM TO BE SOLVED: To obtain an orthogonal excitation-type laser oscillator in which an optical base is hardly influenced by the deformation due to heat or the like of an oscillator enclosure and which can enhance the time-dependent stability in the outgoing direction of a laser beam. SOLUTION: The orthogonal excitation-type laser oscillator comprises the oscillator enclosure 1. The oscillator comprises a rear-part optical base 7 which is installed or the outside of the oscillator enclosure 1 and which has a total reflector 6. The oscillator comprises a front-part optical base 9 which faces the optical base 7 via the oscillator enclosure 1 and which comprises a partial reflector 8 constituting a resonator together with the total reflector 6. The oscillator comprises a support rod 13 and a support rod 14 which are constituted on the outside surface of the oscillator enclosure 1 and which support the base 7 and the base 9. The oscillator comprises a bracket 20 which is installed in the central part in the construction direction on the outside surface and which holds and fixes the support rod 13. The oscillator comprises a slide base 21b which is fixed to the central part in the construction direction on the outside surface. The oscillator comprises a holding bracket 21a which is coupled to the slide base' 21b and which holds the support rod 14. A bracket by which the bracket part 21a and the slide base 21b are relatively moved with reference to the displacement of the outside surface in a direction perpendicular to the construction direction is provided.