WIAS Preprint No. 713, (2002)

Dynamics of multi-section DFB semiconductor laser: Traveling wave and mode approximation models


  • Radziunas, Mindaugas
    ORCID: 0000-0003-0306-1266
  • Wünsche, Hans-Jürgen

2010 Mathematics Subject Classification

  • 78A60 35P10 37N20 37G35


  • traveling wave, mode approximation, modeling, bifurcation, multi-section DFB laser




Nonlinear dynamical effects of a multi-section DFB semiconductor laser such as self-pulsations or hysteresis can be described by the traveling wave model. The present paper demonstrates that such a model can be effectively approximated by a low dimensional system of ordinary differential equations where only few dynamically varying longitudinal modes of optical field are taken into account. A bifurcation analysis of the reduced models allow us to identify the mechanisms of switching on and switching off of the self-pulsations by tuning model parameters. An explanation of hysteresis is given as well.

Appeared in

  • SPIE proceedings Series, vol. 4646, pp. 27-37, (2002)

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