| 摘要 |
PROBLEM TO BE SOLVED: To obtain a wavelength conversion element which is enhanced in temperature controllability of the substrate having the polarization reversal structure of which temperature is controlled by a heating means. SOLUTION: The wavelength conversion element 10 includes: a polarization reversal crystal 13 which converts the input laser beam into a laser beam having a prescribed wavelength and is arranged on a thick film resistance board 11 having the heating means; and a soaking plate 12 which uniformizes a temperature distribution of the polarization reversal crystal 13, has prescribed thermal conductivity and is arranged between the thick film resistance board 11 and the polarization reversal crystal 13. The thick film resistance board 11 is stuck to the soaking plate 12 and the soaking plate 12 is stuck to the polarization reversal crystal 13 by using an adhesive member 15 having prescribed thermal conductivity. COPYRIGHT: (C)2011,JPO&INPIT |
