Segmented vertical cavity surface emitting laser
US11563306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Feb 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/18386
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A VCSEL device includes a first electrical contact, a substrate, a second electrical contact, and an optical resonator arranged on a first side of the substrate. The optical resonator includes a first reflecting structure comprising a first distributed Bragg reflector, a second reflecting structure comprising a second distributed Bragg reflector, an active layer arranged between the first and second reflecting structures, and a guiding structure. The guiding structure is configured to define a first relative intensity maximum of an intensity distribution within the active layer at a first lateral position such that a first light emitting area is provided, to define at least a second relative intensity maximum of the intensity distribution within the active layer at a second lateral position such that a second light emitting area is provided, and to reduce an intensity in between the at least two light-emitting areas during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.