Patent ID: 11906777
Assignee: INTEL CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A method of forming a wavelength-division multiplexed (WDM) transceiver, the method comprising:
providing a substrate with a first z-height measured in a z-direction at a first portion of the substrate and a second z-height measured in the z-direction at a second portion of the substrate that is different than the first portion;
providing a first insulator layer over the first portion of the substrate;
providing a second insulator layer over the second portion of the substrate;
providing a first waveguide over the first insulator layer, the first waveguide having a first thickness measured in the z-direction at a first portion of the first waveguide and a second thickness measured in the z-direction at a second portion of the first waveguide, wherein the second thickness is greater than the first thickness; and
providing a second waveguide over the second insulator layer, wherein the second waveguide is coupled with a portion of the first waveguide, wherein the first waveguide includes silicon, and the second waveguide includes silicon and nitrogen.