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US 10,473,858 B1Granted
Waveguide routing configurations and methods
AssigneeFinisar Corporation
InventorsDaniel Mahgerefteh, Ying Luo, Shiyun Lin, Jin-Hyoung Lee
Life of this patent
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Abstract
An optical waveguide may include a silicon portion and a silicon nitride portion positioned over the silicon portion. The silicon portion may include a taper that decreases a width of the silicon portion. The optical waveguide may include a transition between a loaded single mode or multimode waveguide to a single mode waveguide. The silicon nitride portion may confine optical signals traveling through the optical waveguide in the silicon portion.
Claims19
An optical waveguide comprising:
- a silicon portion including a taper that decreases a width of the silicon portion;
- a silicon nitride portion positioned over the silicon portion;
- and
- a bend positioned proximate the taper, wherein the taper changes optical signals traveling through the optical waveguide from multimode to single mode to permit the optical signals to be routed through the bend.
1 more element
An optical waveguide comprising:
- a silicon portion including a taper that decreases a width of the silicon portion;
- a silicon nitride portion positioned over the silicon portion;
- and
- a bend, wherein the silicon portion and the silicon nitride portion extend through the bend, and the taper decreases a width of the silicon portion prior to the bend.
1 more element
An optical waveguide comprising:
- a transition between a loaded single mode or multimode waveguide to a single mode waveguide, the transition comprising:
- a silicon portion;
- a silicon nitride portion positioned over the silicon portion;
- and
- a taper decreasing a width of the silicon portion;
- a bend positioned proximate the taper, wherein the taper changes optical signals traveling through the optical waveguide from multimode to single mode to permit the optical signals to be routed through the bend.
3 more elements
Dependencies are inferred from the claim text.