Patent ID: 7777881
Filing Date: 2010-08-17
Classification: G02B,H01S

Abstract:
1. A laser device comprising: a resonator; a solid laser medium that is disposed in the resonator and that outputs, as oscillation light, linear polarized light polarized in a direction parallel to a first crystal axis due to excitation light being made incident thereon; and an exciting unit that allows the excitation light to be made incident on the solid laser medium, which excitation light is linear polarized light having a wavelength in a blue region and is polarized in a direction intersecting the first crystal axis of the solid laser medium, wherein an absorption intensity of the excitation light in the solid laser medium in the direction in which the excitation light is polarized is larger than that of the excitation light in the direction parallel to the first crystal axis, and a light emission intensity in a predetermined oscillation wavelength region in regard to the direction parallel to the first crystal axis is larger than the light emission intensity in the direction in which the excitation light is polarized.