Distributed oxide lens for beam shaping
US11456575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Aug 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/18333
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vertical-cavity surface-emitting laser (VCSEL) may include a substrate and a set of epitaxial layers on the substrate. The set of epitaxial layers may include a first mirror and a second mirror, an active region between the first mirror and the second mirror, and an oxidation layer to provide optical and electrical confinement in the VCSEL. The oxidation layer may be near the first mirror. The set of epitaxial layers may include an oxide lens to control a characteristic of an output beam emitted by the VCSEL. The oxide lens may be separate from the oxidation layer, and may be a lens that is separate from the first mirror and from the second mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.