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US-12153233-B1 · Nov 26, 2024 · US
Re-entrant mirror photodetector with waveguide mode focusing
US9099581B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9099581-B2 |
| Application number | US-201113996528-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 28, 2011 |
| Priority date | Dec 28, 2011 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A photonic integrated circuit (I/C) includes a focusing sidewall or in-plane surface that redirects and focuses light from a waveguide to a photodetector structure. The focusing includes redirecting an optical signal to a width smaller than a width of the waveguide. The focusing of the light allows the photodetector structure to be outside a waveguide defined by parallel oxide structures. With the photodetector structure outside the waveguide, the contacts can be placed closer together, which reduces contact resistance.
First claim
Opening claim text (preview).
What is claimed is: 1. A semiconductor photonic integrated circuit (I/C), comprising: a waveguide integrated within a semiconductor substrate layer of the I/C, the waveguide horizontally constrained by parallel oxide structures on either side of a semiconductor material of the semiconductor substrate layer, the waveguide having a waveguide width defined by the parallel oxide structures, where an optical signal is to propagate horizontally along the waveguide; a photodetector str…
Assignees
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Classifications
- H10F77/413Primary
Electricity · mapped topic
- G01J1/0204Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9099581B2 cover?
- A photonic integrated circuit (I/C) includes a focusing sidewall or in-plane surface that redirects and focuses light from a waveguide to a photodetector structure. The focusing includes redirecting an optical signal to a width smaller than a width of the waveguide. The focusing of the light allows the photodetector structure to be outside a waveguide defined by parallel oxide structures. With …
- Who is the assignee on this patent?
- Na Yun-Chung Neil, Saado Yuval, Kang Yimin, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H10F77/413. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 04 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).