Article comprising a unipolar superlattice laser
US5745516A · kind A · utility
14Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/34313
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The novel unipolar laser resembles a quantum cascade laser but utilizes radiative transitions between upper and lower minibands of superlattices, with injection of charge carriers from the lower miniband into the upper miniband of the adjacent downstream superlattice facilitated by a multilayer injector region. The lasing wavelength is typically in the mid-infrared, selectable by choice of the superlattice parameters. The novel laser is potentially well suited for high power operation, since it utilizes carrier transport in minibands, as opposed to tunneling between discrete energy states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.