Journal article
Ultrafast gain and index dynamics of quantum dash structures emitting at 1.55 mu m
Nanophotonics, Department of Photonics Engineering, Technical University of Denmark1
Department of Photonics Engineering, Technical University of Denmark2
Universität Würzburg3
University of Kassel4
Technion-Israel Institute of Technology5
Center for Nanoteknologi, Centers, Technical University of Denmark6
The authors systematically characterize the ultrafast gain and index recovery of a quantum dash semiconductor optical amplifier after it has amplified a strong femtosecond pulse. The results show a recovery dominated by a fast time constant of 1.4 ps with an ultimate recovery taking place on a 150 ps time scale.
The results are distinctly different from the recovery of quantum dot amplifiers and reflect the special density of states of the quantum-wire-like dashes.
| Language: | English |
|---|---|
| Publisher: | American Institute of Physics |
| Year: | 2006 |
| ISSN: | 10773118 and 00036951 |
| Types: | Journal article |
| DOI: | 10.1063/1.2337881 |
| ORCIDs: | Mørk, Jesper |
