Patent ID: 11888290
Assignee: CISCO TECHNOLOGY, INC.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. An optical apparatus comprising:
a semiconductor substrate; and
a supermode filtering waveguide (SFW) emitter disposed on the semiconductor substrate and formed as a first portion extending from a second portion, the SFW emitter comprising:
a first optical waveguide disposed in the second portion;
a spacer layer;
a second optical waveguide disposed in the first portion and spaced apart from the first optical waveguide by the spacer layer, wherein the second optical waveguide is evanescently coupled with the first optical waveguide and configured in conjunction with the first optical waveguide to selectively propagate only a first mode of a plurality of optical modes; and
an optically active region disposed in one of the first optical waveguide and the second optical waveguide.