| 摘要 |
PROBLEM TO BE SOLVED: To provide a waveguide type wavelength conversion element and a laser device in which loss due to reflection by an interface is not caused, and the necessity of fine processing is eliminated and thus a short circuit between electrodes is not generated.SOLUTION: According to the present invention, a wavelength conversion element for converting a fundamental wave into a harmonic comprises: a core part 41 that has a periodic polarization inversion region 6 formed so as to satisfy desired phase matching conditions; and cladding parts 42 that have regions with the periodic polarization inversion region 6 held therebetween and in which electrodes 2a, 2b, 5a, and 5b for applying voltage are formed in the regions.SELECTED DRAWING: Figure 1 |
