An optical interconnect architecture provides three dimensional optical
interconnects, with the optical interconnects provided along a plane such
as a wafer or a substrate. One or more integrated circuits is provided on
a second "electronic" plane that is spaced from the optical interconnect
plane. Signals from the circuit on the electronic plane are coupled to
the optical interconnect plane using various strategies, including metal
or optical interlayer interconnects extending perpendicular to the
optical plane. Once on the optical interconnect plane, the signals from
the circuits on the electronic plane are propagated optically.