SEMICONDUCTOR LIGHT MODULATOR AND LIGHT MODULATING DEVICE

摘要

A semiconductor light modulator is provided with a first semiconductor light waveguide composed of a multilayer structure which includes a core layer, a first clad layer and a second clad layer arranged on a lower section and an upper section, respectively, with the core layer therebetween, and a barrier layer inserted between the second clad layer and the core layer; a second semiconductor light waveguide composed of a multilayer structure having a p-type semiconductor wherein the second clad layer locally penetrates in the laminating direction in an n-type semiconductor, in the multilayer structure of the first semiconductor light waveguide; a first electrode connected to the first clad layer of the first semiconductor light waveguide; and a second electrode which electrically connects the second clad layer of the first semiconductor light waveguide and the p-type semiconductor of the second clad layer of the second semiconductor light waveguide to each other.