| 摘要 |
PURPOSE:To obtain a subminiature harmonics conversion device by a method wherein a non-linear optical crystal, a solid laser medium, an aspherical lens, and a semiconductor laser chip are housed in the sam package in this order. CONSTITUTION:A nonlinear optical crystal 2, a solid laser medium 1, a lens 3, and a semiconductor laser chip 4 are housed in the same package in this sequence. That is, an optical resonator is composed of an end face 1A of the solid laser medium 1 closer to the semiconductor laser chip 4 and an end face 2B of the nonlinear optical crystal 2 on the further side from the semiconductor laser chip 4. Semiconductor laser rays are collected through the lens 3, and the end faces of the solid laser medium 1 are excited in an axial direction. By this setup, a subminiature stable semiconductor laser excitated solid laser formed in an integral structure can be obtained. |
