WIAS Preprint No. 2421, (2017)

Efficient coupling of inhomogeneous current spreading and dynamic electro-optical models for broad-area edge-emitting semiconductor devices


  • Radziunas, Mindaugas
    ORCID: 0000-0003-0306-1266
  • Zeghuzi, Anissa
  • Fuhrmann, Jürgen
    ORCID: 0000-0003-4432-2434
  • Koprucki, Thomas
    ORCID: 0000-0001-6235-9412
  • Wünsche, Hans-Jürgen
  • Wenzel, Hans
    ORCID: 0000-0003-1726-0223
  • Bandelow, Uwe
    ORCID: 0000-0003-3677-2347

2010 Mathematics Subject Classification

  • 65Z05 78A60 65Y20 78M25 78M12 65N80

2010 Physics and Astronomy Classification Scheme

  • 42.55.Px 02.30.Jr 02.60.Lj 02.60.Gf


  • Broad area lasers, modeling, traveling wave, inhomogeneous current spreading, Laplace problem, separation of variables, finite volumes, effective implementation




We extend a 2 (space) + 1 (time)-dimensional traveling wave model for broad-area edge-emitting semiconductor lasers by a model for inhomogeneous current spreading from the contact to the active zone of the laser. To speedup the performance of the device simulations, we suggest and discuss several approximations of the inhomogeneous current density in the active zone.

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