Second harmonic wave generating device having active layer and second harmonic wave generating layer on 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 λ 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 λ/2 from the light generated in the active layer; anda pair of electrodes (35,36) for supplying the active layer with a current.