Patent ID: 6636537
Filing Date: 2003-10-21
Classification: G02F,H01S

Abstract:
A laser apparatus for emitting laser beams of a plurality of different wavelengths, the apparatus including:an exciting light source; a solid-state laser medium which emits light of a plurality of peak wavelengths by the exciting light source; a movable reflection mirror disposed changeably between a first position and a second position; a first resonance optical system including: a first resonant mirror and a second resonant mirror placed with the laser medium, forming the first resonance optical system, and the movable mirror disposed in the first position interposed between the first resonant mirror and the second resonant mirror to resonate light of a first peak wavelength among the plurality of peak wavelengths emitted from the laser medium, the first position in which the first peak wavelength light being reflected by the movable mirror between the laser medium and the second mirror; and a first wavelength converting element located between the movable mirror disposed in the first position and the second mirror to oscillate a-second harmonic light of the first peak wavelength light as a first laser beam; and a second resonance optical system including: a third resonant mirror and the first resonant mirror placed with the laser medium, forming the second resonance optical system, and the movable mirror disposed in the second position interposed between the third resonant mirror and the first resonant mirror to resonate light of a second peak wavelength among the plurality of peak wavelengths emitted from the laser medium, the second position in which the second peak wavelength light being reflected by the movable mirror between the laser medium and the third mirror, the second peak wavelength being different in wavelength from the first peak wavelength; and a second wavelength converting element located between the third mirror and the movable mirror disposed in the second position to oscillate second harmonic light of the second peak wavelength light as a second laser beam.