| 摘要 |
PURPOSE:To improve the efficiency of oscillation by interposing a neodymium laser medium between an erbium laser medium containing erbium Er ions and ytterbium Yb ions and a light source for excitation. CONSTITUTION:Neodymium laser media 2, 2' containing Nd ions on both the surface and the back of an erbium laser medium 1 containing Er ions and Yb ions, a solid-state laser element, on an outer surface thereof reflecting films 3, 3' are formed, and cylindrical flash lamps 4, 4' as light sources for excitation are housed in a lamp house 5 directly or through supporters 6. Inflow ports 7 and outflow ports 8 for a refrigerant are formed to the lamp house 5, and transmitting windows 9, 9' emitting laser beams to a total reflection mirror 10 and a semi-transmitting mirror 10' are shaped onto the optical axis of the solid-state laser element. |
