Patent ID: 7088760
Filing Date: 2006-08-08
Classification: H01S

Abstract:
1. A solid-state laser apparatus comprising: a resonator in which oscillation of laser light of a predetermined wavelength occurs; a solid-state laser medium that emits said predetermined wavelength of light and concurrently at least one other wavelength of light that can oscillate in said resonator; and an etalon having a longitudinal selectivity and which is provided in the resonator; said etalon has at least one surface through which laser light passes, and said surface has a coating and is arranged so that at least one reflectance of the at least one surface at said predetermined wavelength is smaller than a reflectance of the at least one surface at said at least one other wavelength other than the predetermined wavelength, wherein, when the resonator gain curve has a plurality of peaks, the oscillation of the laser light of said predetermined wavelength occurs at a substantially single longitudinal mode.