Scanning lidar system and method with unitary optical element
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Focal plane optical conditioning for integrated photonics
US12313790B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12313790-B2 |
| Application number | US-202017618503-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2020 |
| Priority date | Aug 13, 2019 |
| Publication date | May 27, 2025 |
| Grant date | May 27, 2025 |
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- Title
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Abstract
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An optical device ( 20 A, 20 B, 100, 200, 800 ) includes a first array of emitters ( 28 A, 28 B) disposed on a semiconductor substrate ( 218 ) and configured to emit respective beams of optical radiation. A second array ( 36 A, 36 B, 224, 808 ) of micro-optics ( 34 A, 34 B, 226, 802 ) is positioned in alignment with the respective beams of the optical emitters and arranged to condition phases of the beams so that different ones of the beams are transmitted with different phase qualities
First claim
Opening claim text (preview).
The invention claimed is: 1. An optical device, comprising: a first array of optical emitters, which are disposed on a semiconductor substrate and configured to emit respective beams of optical radiation, and which comprise respective spot-size converters; and a second array of micro-optics positioned in alignment with the respective beams of the optical emitters and arranged to condition phases of the respective beams so that different ones of the respective beams are transmitted with different phase qualities, wherein the respective spot-size converters are mutually non-parallel, so as to emit the respective beams in respective, non-parallel directions. 2. The optical device according to claim 1 , wherein the respective spot-size converters comprise tapered waveguides. 3. The optical device according to claim 2 , wherein different ones of the respective spot-size converters have different, respective tapers selected so as to form spots of different, respective spot sizes. 4. The optical device according to claim 2 , wherein the tapered waveguides have respective output ends, which are offset relative to an output facet of the semiconductor substrate selected such that the respective output ends are disposed along a curve. 5. The optical device according to claim 1 , wherein the micro-optics in the second array comprise respective microlenses. 6. The optical device according to claim 5 , wherein at least some of the respective microlenses are offset with respect to the respective beams so as to direct the respective beams at different, respective angles. 7. The optical device according to claim 5 , wherein at least some of the microlenses have different, respective focal lengths. 8. The optical device according to claim 6 , and comprising one or more folding mirrors, which are disposed on the semiconductor substrate so as to direct the respective beams away from a plane of the semiconductor substrate.
Assignees
Inventors
Classifications
- G02B6/1228Primary
Tapered waveguides, e.g. integrated spot-size transformers (for coupling with fibres G02B6/305) · CPC title
- G01S7/4815Primary
using multiple transmitters · CPC title
Optical elements or arrangements (surface textures H10F77/70) · CPC title
Microlenses · CPC title
Transmitters · CPC title
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- What does patent US12313790B2 cover?
- An optical device ( 20 A, 20 B, 100, 200, 800 ) includes a first array of emitters ( 28 A, 28 B) disposed on a semiconductor substrate ( 218 ) and configured to emit respective beams of optical radiation. A second array ( 36 A, 36 B, 224, 808 ) of micro-optics ( 34 A, 34 B, 226, 802 ) is positioned in alignment with the respective beams of the optical emitters and arranged to condition p…
- Who is the assignee on this patent?
- Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B6/1228. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 27 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).