Quantum cascade laser with relaxation-stabilized injection
US6690699B2 · kind B2 · utility
34Cited by
10References
15Claims
0Family size
Inventors
Key dates
| Filing date | Feb 21, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/2231
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical gain medium has first and second active layers and an injector layer interposed between the first and second active layers. The active layers have upper minibands and lower minibands. The injector layer has a miniband that transports charge carriers from the lower miniband of the first active layer to an excited state in the upper miniband of the second active layer in response to application of a voltage across the optical gain medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.