Patent ID: 6844954

Claim:
A method of manufacturing a monolithic stabilized electroabsorption modulator which includes a substrate with a top surface and substrate index of refraction; a waveguide layer with an output optical tap section and an electroabsorption section arranged along a longitudinal axis; and a semiconductor layer, the method comprising the steps of: a) forming a waveguide layer having a waveguide index of refraction different from the substrate index of refraction on the top surface of the substrate, the waveguide layer including an electroabsorption portion adjacent to the output optical tap portion; b) forming the semiconductor layer on the waveguide layer, the semiconductor layer including a semiconductor layer index of refraction different from the waveguide index of refraction; c) defining and etching the waveguide layer and the semiconductor layer to form mesa structure; d) depositing a base electrical contact on the substrate; and e) depositing a modulator electrical contact and an output optical tap electrical contact on the semiconductor layer.