Electron beam pumped vertical cavity surface emitting laser
US9112332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vertical external cavity surface emitting laser (VECSEL) structure includes a heterostructure and first and second reflectors. The heterostructure comprises an active region having one or more quantum well structures configured to emit radiation at a wavelength, λlase, in response to pumping by an electron beam. One or more layers of the heterostructure may be doped. The active region is disposed between the first reflector and the second reflector and is spaced apart from the first reflector by an external cavity. An electron beam source is configured to generate the electron beam directed toward the active region. At least one electrical contact is electrically coupled to the heterostructure and is configured to provide a current path between the heterostructure and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.