Patent ID: 6327294
Filing Date: 2001-12-04
Classification: H01S

Abstract:
A solid-state laser apparatus having an optical resonator, said optical resonator comprising:at least one solid-state laser medium extending in a direction of an optical axis of a laser beam and containing an active solid medium therein;an exciting light source for exciting said solid-state laser medium and generating a thermal lens in said solid-state laser medium;at least one wavelength-converting device for converting a wavelength of the laser beam, absorbing a portion of the laser beam and generating a thermal lens therein; andan optical device having at least one reflecting mirror and at least one harmonic mirror for resonating the laser beam emitted from said solid-state laser medium and extracting the laser beam having the wavelength converted by said wavelength-converting device;wherein stable conditions are satisfied for a combination of said solid-state laser medium, said thermal lens generated in said solid-state laser medium, said wavelength-converting device, said thermal lens generated in said wavelength-converting device, said reflecting mirror and said harmonic mirror.