| 摘要 |
PURPOSE:To enable laser oscillations at multi-wavelengths stably by arranging a plurality of pigment vessels in series and mounting an output mirror on one side of a vessel group, reflecting mirrors with windows among the vessels, a first wavelength selecting means at the position of incidence of reflected beams and a second wavelength selecting means on the other side of the vessel group. CONSTITUTION:Pumping beams 7 are divided by a beam splitter 11, and pumping beams 7a are totally reflected by a cylindrical lens 13a and 7b by a total reflection mirror 12 and condensed by a cylindrical lens 13b. When each pigment in first and second pigment solutions 1A, 2A is irradiated severally at the same time, excited beams in a peculiar wavelength region are outputted. Light waves having a wavelength lambda1 are generated from a first pigment and light waves having a wavelength lambda2 from a second pigment, and the first light waves having the wavelength lambda1 repeatedly pass between the path of an output mirror 3 the firs pigment solution 1A the reflecting surface of a reflecting mirror 4 with a window a first diffraction grating 5 and the second light waves having the wavelength lambda2 between the path of the output mirror 3 the first pigment solution 1A a window 4A for the reflecting mirror 4 with the window the second pigment solution 2A a second diffraction grating 6 and respectively laser-oscillate. Accordingly, laser oscillations at multi-wavelengths can be conducted stably. |
