Optical data communication module having emi cage

An optical data communication module, comprising:

• a first substrate assembly comprising a transmit portion, a receive portion, and an array of electrical contacts, the transmit portion having transmit first planar substrate with a first surface and a second surface, the first surface of the transmit first planar substrate having a metal layer, the receive portion having receive first planar substrate with a first surface and a second surface, the first surface of the receive first planar substrate having a metal layer;
• an opto-electronic transmitter mounted on the second surface of the transmit first planar substrate and electrically connected to a first group of signal conductors of the first substrate assembly, at least a portion of the first group of signal conductors coupled to the array of electrical contacts;
• an opto-electronic receiver mounted on the second surface of the receive first planar substrate and electrically connected to a second group of signal conductors of the first substrate assembly, at least a portion of the second group of signal conductors coupled to the array of electrical contacts;
• a transmit second planar substrate having a first surface and a second surface, the first surface of the transmit second planar substrate having a transmitter cavity therein, the opto-electronic transmitter extending into the transmitter cavity, a region of the first surface of the transmit second planar substrate surrounding the transmitter cavity in contact with the second surface of the transmit first planar substrate, the second surface of the transmit second planar substrate having a metal layer, a first plurality of conductors oriented normal to the transmit first planar substrate and transmit second planar substrate extending through the transmit first planar substrate and through the transmit second planar substrate and electrically connecting the metal layer of the first surface of the transmit first planar substrate to the metal layer of the second surface of the transmit second planar substrate, the first plurality of conductors distributed around a periphery of the opto-electronic transmitter to provide shielding against electromagnetic interference, one of the transmit first planar substrate and transmit second planar substrate having a transmit hole therethrough and extending to the opto-electronic transmitter;
• and
• a first optical element at least partly disposed in the transmit hole and optically aligned with the opto-electronic transmitter;
• a receive second planar substrate having a first surface and a second surface, the first surface of the receive second planar substrate having a receiver cavity therein, the opto-electronic receiver extending into the receiver cavity, a region of the first surface of the receive second planar substrate surrounding the receiver cavity in contact with the second surface of the receive first planar substrate, the second surface of the receive second planar substrate having a metal layer, a second plurality of conductors oriented normal to the receive first planar substrate and receive second planar substrate extending through the receive first planar substrate and through the receive second planar substrate and electrically connecting the metal layer of the first surface of the receive first planar substrate to the metal layer of the second surface of the receive second planar substrate, the second plurality of conductors distributed around a periphery of the opto-electronic receiver to provide shielding against electromagnetic interference, one of the receive first planar substrate and receive second planar substrate having a receive hole therethrough and extending to the opto-electronic receiver;
• and
• a second optical element at least partly disposed in the receive hole and optically aligned with the opto-electronic receiver.