Substrate based traveling wave optoelectronic device

A method of manufacturing an optoelectronic device, comprising:

• forming, on a surface of a electrical circuit substrate, an electrical transmission line comprising a first conductor and a second conductor extending between a first end and a second end, the second end being separated from the first end with respect to a longitudinal axis;
• forming a first plurality of electrically conductive structures on a surface of the first conductor;
• forming a second plurality of electrically conductive structures on a surface of the second conductor, each electrically conductive structure of the second plurality of electrically conductive structures corresponding to a respective electrically conductive structure of the first plurality of electrically conductive structures;
• forming a waveguide on a photonic integrated circuit (PIC), the waveguide extending between a first waveguide location and a second waveguide location, the first waveguide location being separated from the second waveguide location with respect to the longitudinal axis;
• forming a plurality of conversion segments on the PIC, each conversion segment comprising a first conversion structure and a second conversion structure, the first conversion structure and second conversion structure being configured for optoelectronic interaction with the waveguide;
• electrically connecting the first plurality of electrically conductive structures to the first conversion structures of the plurality of conversion segments;
• and
• electrically connecting the second plurality of electrically conductive structures to the second conversion structures of the plurality of conversion segments.