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

Claim 0:
1. 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, the second region comprising a first adiabatic taper; and

a second photonic integrated circuit, including a second waveguide, stacked vertically over the first photonic integrated circuit, the second waveguide having:
a third region that occupies a second horizontal plane and has a third vertical dimension; and
a fourth region that has a fourth vertical dimension that is larger than the third vertical dimension, the fourth region comprising a second adiabatic taper; wherein:
the second region is positioned in the second horizontal plane; and
the second region and the fourth region change a mode of light travelling between the first photonic integrated circuit and the second photonic integrated circuit; and
the first adiabatic taper tapers horizontally such that a width of second region decreases from a first side of the second region that faces the fourth region until the second region terminates.