| 摘要 |
<p>An end surface 3b of a solid-state laser element 3 is sloped in such a way that, in a case in which it is assumed that laser light is incident upon air from the end surface 3b, an angle of incidence which a normal to an end face on a side of the solid-state laser element 3 in a plane of the incidence forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, an end surface 4a of a wavelength conversion element 4 is sloped in such a way that, in a case in which it is assumed that the laser light is incident upon air from the end surface 4a, an angle of incidence which a normal to an end face on a side of the wavelength conversion element 4 in a plane of the incidence forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, and the end surface 3b and the end surface 4b are arranged in such a way as to be opposite to each other.</p> |
