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Proceedings Paper

Near-threshold relaxation dynamics of a quantum dot laser
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Paper Abstract

The near-threshold dynamics of a QD and a commercial QW laser are investigated both experimentally and theoretically. Below threshold, the resonance frequency and damping factor of the QD laser exhibit a different behaviour as compared to the QW counterpart. In the near-threshold regime, the intra-dot carrier relaxation is predicted from an empirical pairstates model to have a strong impact on the QD laser’s modulation dynamics. The widespread of experimental values for the damping factor reported in the literature for QD lasers is a further indication that this empirical approach is pushed to the limits in this situation. More accurate microscopic modelling should rely on a separation of electron and hole dynamics.

Paper Details

Date Published: 2 May 2014
PDF: 9 pages
Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 913404 (2 May 2014); doi: 10.1117/12.2048996
Show Author Affiliations
Cheng Wang, Univ. Européenne de Bretagne, INSA, CNRS FOTON (France)
Telecom Paristech, Ecole Nationale Supérieure des Télécommunications, CNRS LTCI (France)
Jacky Even, Univ. Européenne de Bretagne, INSA, CNRS FOTON (France)
Frédéric Grillot, Télécom ParisTech (France)

Published in SPIE Proceedings Vol. 9134:
Semiconductor Lasers and Laser Dynamics VI
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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