Patent ID: 9153934
Filing Date: 2015-10-06
Classification: A61F,G02F,H01S

Abstract:
1. A laser apparatus that outputs wavelength tunable output light, comprising: a fundamental wavelength light generating unit, which generates light of the fundamental wavelength in accordance with an output wavelength instruction signal that specifies the wavelength of the output light; an optical amplifier unit, which amplifies the light of the fundamental wavelength; a wavelength converting part that comprises a plurality of nonlinear optical crystals, each nonlinear optical crystal performing wavelength conversion, each non-linear optical crystal having a corresponding temperature regulator, each temperature regulator regulating the temperature of the corresponding nonlinear optical crystal, wherein the wavelength converting part converts the light amplified by the optical amplifier unit to light of the wavelength indicated by the output wavelength instruction signal; a storage unit, which stores correspondence information that indicates a correspondence relationship between the wavelength of the output light and the temperature of each of the non-linear optical crystals to be set in accordance with the corresponding wavelength; and a control unit that controls each of the temperature regulators such that the temperature of the corresponding nonlinear optical crystal reaches the temperature to be set as determined by the correspondence information in accordance with the output wavelength instruction signal.