Patent ID: 11914201
Assignee: APPLE INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A multi-chip photonic assembly, comprising:
a first photonic integrated circuit including a first waveguide having:
a first region that occupies a first horizontal plane and has a first vertical dimension; and
a second region that has a second vertical dimension that is larger than the first vertical dimension; and

a second photonic integrated circuit, including a second waveguide that occupies a second horizontal plane, stacked vertically over the first photonic integrated circuit; wherein:
the second region is positioned in the second horizontal plane;
the second region changes a mode of light travelling between the first photonic integrated circuit and the second photonic integrated circuit; and
the second region uses interference between optical modes within the second region to transfer the light travelling between the first photonic integrated circuit and the second photonic integrated circuit.