Abstract
This paper presents experimental results obtained on a laser structure containing a single QD layer, epitaxially grown on InP(3 1 1)B substrate. The sample shows laser emission on the ground state in the 1.55 νm telecommunication window at room temperature. Its threshold current density is 320 A cm-2, which is relatively low for an InP-based QD laser. Its modal gain, attributed to a high QD density and low QD size dispersion, explains this first achievement of lasing with a single QD layer on an InP substrate.
| Original language | English |
|---|---|
| Article number | 028 |
| Pages (from-to) | 827-830 |
| Number of pages | 4 |
| Journal | Semiconductor Science and Technology |
| Volume | 22 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2007 |
| Externally published | Yes |