Light emitting element
US11509117B2 · kind B2 · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/176
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting element (semiconductor laser element) includes a multilayer structure in which a substrate, semiconductor layers to, an insulating layer, and a metal layer are stacked in order. The light emitting element includes a plurality of light emitting portions each of which emits a laser beam. The plurality of light emitting portions each include a ridge (ridge waveguide). The distance from a specific position in an active region in at least one of the light emitting portions to an inner surface of the metal layer is different from that in another of the light emitting portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.