Shielded photonic integrated circuit
AssigneeElenion Technologies, LLC
InventorsRuizhi Shi, Yang Liu, Ari Novack, Yangjin Ma, Kishore Padmaraju, Michael J. Hochberg
Life of this patent
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Abstract
A light shield may be formed in photonic integrated circuit between integrated optical devices of the photonic integrated circuit. The light shield may be built by using materials already present in the photonic integrated circuit, for example the light shield may include metal walls and doped semiconductor regions. Light-emitting or light-sensitive integrated optical devices or modules of a photonic integrated circuit may be constructed with light shields integrally built in.
Claims17
1-29. (canceled)
A photonic integrated circuit comprising:
- a substrate;
- a first integrated optical device comprising a slab waveguide and at least one input/output waveguide over the substrate;
- and
- a metal, light-shield structure substantially surrounding the first slab waveguide, except for at least one opening for the at least one input/output waveguide, capable of shielding the first slab waveguide from stray light;
- wherein the metal light-shield structure comprises a first electrode electrically coupled to an external element.
A photonic integrated circuit comprising:
- a substrate;
- a first integrated optical device comprising a slab waveguide and at least one input/output waveguide over the substrate;
- and
- an optically-absorbing, light-shield structure substantially surrounding the first slab waveguide, except for at least one opening for the at least one input/output waveguide, capable of shielding the first slab waveguide from stray light.
Dependencies are inferred from the claim text.