Surface-emitting laser and electronic apparatus
US11031752B2 · kind B2 · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Oct 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2304/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A surface-emitting laser according to an embodiment of the present disclosure includes a current constriction region having an opening and formed by impurities injected into a laminate from side of a second semiconductor layer; and a first DBR layer on side of a first semiconductor layer and a second DBR layer on the side of the second semiconductor layer having the laminate interposed therebetween at a position facing the opening. At the opening, an opening diameter close to the first DBR layer is larger than an opening diameter close to the second DBR layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.