Passively aligned optical-electrical interface

A method of manufacturing an optical-electrical interface, comprising:

• forming an array of alignment interfaces in a mold, each of the alignment interfaces formed with a cavity to receive and to passively align an external waveguide connector;
• forming conductor pads coupled to first conductor traces on the surface of the array of alignment interfaces for each of the alignment interfaces;
• dicing the array of alignment interfaces into individual alignment interfaces;
• and
• mounting an optoelectronic die to one of the alignment interfaces, the optoelectronic die including electrical ports, optical ports, and an optical source responsive to at least one of the electrical ports, and optically coupled to one of the optical ports.

A system, comprising:

• first and second processor cores;
• synchronous dynamic random access memory (“SDRAM”) coupled to the first processor core;
• waveguides;
• and
• first and second optical-electrical interfaces (“OEIs”) coupled to the waveguides, the first and second OEIs coupled to the first and second processor cores, respectively, each of the first and second OEIs comprising:
• an alignment interface including a waveguide port to receive and to align the waveguides from a first side of the alignment interface and first conductors disposed on a second side of the alignment interface coupled to one of the processor cores;
• and
• an optoelectronic die mounted to the second side of the alignment interface including electrical input and output ports coupled to the first conductors, an optical source coupled to the electrical input port, an optical detector coupled to the electrical output port, and optical output ports optically coupling the optical source and the optical detector with the waveguides through the alignment interface.