device for the production of the second harmonic, and the active layer and the layer for generating the second harmonic on the same substrate.

摘要

A second harmonic wave generating device comprises: a substrate (33); an active layer (34) formed on said substrate and adapted for generating light of a wavelength lambda in response to the injection of a current; a layer (31) of a second harmonic wave generating material formed on the substrate and adapted for generating light of a wavelength lambda /2 from the light generated in the active layer; and a pair of electrodes (35,36) for supplying the active layer with a current.