Patent ID: 7643205

Claim:
A harmonics generating device comprising: a supporting substrate; a wavelength conversion layer comprising a channel type optical waveguide comprising a periodic domain inversion structure provided therein, the layer comprising an X plate or offset X plate comprising a ferroelectric single crystal; a base adhesive layer for adhering a lower face of the wavelength conversion layer and the supporting substrate; an upper-side substrate provided on an upper face side of the wavelength conversion layer; an upper-side adhesive layer for adhering the wavelength conversion layer and the upper-side substrate; an incident face of a fundamental wave; a projection face of higher harmonics; a first side face between the incident face and the projection face; and a second side face opposing the first side face, the device further comprising: a first conductive material contacted with the first side face; and a second conductive material contacted with the second side face; wherein the first conductive material and the second conductive material are electrically conductive to each other.