| 摘要 |
[Object] To perform stable wavelength conversion using a semiconductor laser. [Solution] A light source device according to the present disclosure includes: a semiconductor laser unit configured to emit excitation light of a prescribed wavelength; a wavelength conversion unit configured to amplify the excitation light by causing the excitation light to resonate and generate output light of a different wavelength from the excitation light using a prescribed non-linear crystal, the wavelength conversion unit including a first optical path for amplifying the excitation light, and a second optical path for generating the output light; a first optical path length control mechanism configured to control an optical path length of the first optical path; and a second optical path length control mechanism configured to control an optical path length of the second optical path. |
