Patent ID: 11860412
Assignee: CISCO TECHNOLOGY, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A method comprising:
determining a first refractive index of a waveguide in a photonic device;
determining a drift of a refractive index of a material of the waveguide due to thermo-optic conditions;
determining a size and a position of a compensation structure to alter the drift in photonic device properties via pressure exerted by the compensation structure on surrounding materials between the compensation structure and the waveguide to counteract a change in the refractive index as a temperature of the photonic device increases during operation; and
disposing the compensation structure within the photonic device according to the size and the position by:
applying at least one compensation structure layer above a waveguide plane comprising the waveguide;
applying at least one additional compensation structure layer below the waveguide plane; and
applying at least one further compensation structure layer within the waveguide plane.