Patent ID: 11927819
Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A multi-chip module, comprising:
an electronic chip; and
a photonic chip coupled to the electronic chip communicatively coupled with the electronic chip, the photonic chip comprising an optical device comprising:
a light-emitting structure comprising an optical gain region to emit light upon application of electricity to the optical device; and
a waveguide integrated capacitor formed under the light-emitting structure to monitor the light emitted by the light-emitting structure, wherein the waveguide integrated capacitor comprises:
a waveguide region carrying at least a portion of the light,
a first buffer semiconductor region; and
an insulating layer disposed between the waveguide region and the first buffer semiconductor region,
wherein the waveguide region comprises one or more photon absorption sites causing generation of free charge carriers relative to an intensity of the light confined in the waveguide region resulting in a change in a conductance of the waveguide region.