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Near-threshold relaxation dynamics of a quantum dot laser

  • Université Européenne de Bretagne
  • CNRS LTCI

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

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.

Original languageEnglish
Title of host publicationSemiconductor Lasers and Laser Dynamics VI
PublisherSPIE
ISBN (Print)9781628410822
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
EventSemiconductor Lasers and Laser Dynamics VI - Brussels, Belgium
Duration: 14 Apr 2014 → 17 Apr 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9134
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSemiconductor Lasers and Laser Dynamics VI
Country/TerritoryBelgium
CityBrussels
Period14/04/14 → 17/04/14

Keywords

  • Modulation dynamics
  • Quantum dot
  • Semiconductor laser

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