The European Physical Journal D

, Volume 58, Issue 2, pp 167–174 | Cite as

Nonlinear dynamics of doped semiconductor quantum dot lasers

  • K. LüdgeEmail author
  • E. Schöll
Focus point issue on Laser dynamics and nonlinear photonics


We discuss the influence of wetting layer doping on the turn-on dynamics of a quantum dot (QD) laser by using a microscopically based rate equation model which separately treats the dynamics of electrons and holes. As the carrier-carrier scattering rates depend nonlinearly on the wetting layer carrier densities we observe drastic changes of relaxation oscillation frequency and damping if the wetting layer is doped. We gain insight into the nonlinear dynamics of the QD laser by a detailed analysis of various sections of the five-dimensional phase space focusing on changes in the coupling between QD electron and holes dynamics.


Relaxation Oscillation Wetting Layer Rate Equation Model Steady State Characteristic Hole Dynamic 
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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Institut für Theoretische Physik, Technische Universität BerlinBerlinGermany

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