| 摘要 |
PURPOSE:To obtain a solid-state laser oscillator, which can be loaded without imparting an excess burden to a movable section such as a robot arm an excess burden and can discharge oscillating beams having excellent convergence and can be borne by the robot, by separating the constitutional sections of a solid-state laser medium and an optical resonator and an exciting-beam generating section exciting the solid-state laser medium, while introducing exciting beams by a beam introducing body and exciting the solid-state laser medium. CONSTITUTION:Oscillating beams having 750nm are discharged by the oscillation of an exciting-beam generator 2, and the beams are introduced to a laser oscillating section 1 by a beam introducing body 3, diverge at an angle equal to an incident angle, are emitted from an outgoing end section and are projected to a cylindrical lens 7. The side orthogonal to the axial direction of the cylindrical lens 7 is converged by the cylindrical lens 7, and is molded to luminous flux expanded in an approximately rectangular shape and reaches one surface as an optical plane in a solid-state laser medium 4. Consequently, the solid-state laser medium 4 is excited, and laser beams L are discharged from an output mirror 5 by the operation of said optical resonator. Nd<3+> doped to the solid-state laser medium 4 has absorption lines having narrow line width of 750nm, 800nm and 880nm being hardly affected by a host crystal. |
