| 摘要 |
PURPOSE:To attain a miniaturized solid-state laser device which does not require dust prevention by arranging a semiconductor laser element, a solid-state laser element and a coupling optical system in the same package and providing a laser beam projecting window in the package by means of using the solid-state laser element. CONSTITUTION:Laser light 10a projected from a semiconductor laser 1 is collected and projected on the semiconductor laser element edge 3a by a coupling optical system 2. Then, a solid-state laser element 3, which is provided as the laser beam projecting window of a package 6, is excited by the laser beam 10a. Laser oscillation of the solid-state laser element 3 is generated in a laser resonator constituted by a flat mirror 3a provided on the end face of the solid- state laser element 3 by deposition, etc., and by a plano-concave mirror provided on the other end face 3b and solid-state laser beam 11 is taken out as transmitted light from the laser element end face 3b. |
