Abstract
Dynamic properties of truly three-dimensional-confined InAsInP quantum dot (QD) lasers obtained by molecular beam epitaxy growth on a (311)B oriented substrate are reported. The relative intensity noise and small signal modulation bandwidth experiments evidence maximum relaxation frequency of 3.8 GHz with a clear relaxation oscillation peak, indicating less damping than InAsGaAs QD lasers. The Henry factor amounts to ∼1.8 below threshold and increases to ∼6 above threshold, which is attributed to band filling of the thick wetting layer.
| Original language | English |
|---|---|
| Article number | 021101 |
| Journal | Applied Physics Letters |
| Volume | 93 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 14 Jul 2008 |
| Externally published | Yes |