Abstract
Mid infrared semiconductor lasers that are based on population inversion between conduction subbands of a quantum well (QW) structure have attracted much attention recently. Recently demonstrated was the operation of the quantum cascade laser which is a unipolar intersubband injection laser. Another scheme to generate population inversion between conduction subbands is by optical pumping. This contribution summarizes the recent experimental and theoretical results including the observation of mid-infrared emission from a GaAs/AlGaAs coupled QWs (CQW) structure. Based on the results, it is predict that the structures could be very effective for achieving almost complete population inversion and large stimulated gain.
| Original language | English (US) |
|---|---|
| Title of host publication | Conference on Lasers and Electro-Optics Europe - Technical Digest |
| Editors | Anon |
| Number of pages | 1 |
| State | Published - 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe - Hamburg, Ger Duration: Sep 8 1996 → Sep 13 1996 |
Other
| Other | Proceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe |
|---|---|
| City | Hamburg, Ger |
| Period | 9/8/96 → 9/13/96 |
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering