WIAS Preprint No. 2261, (2016)

Traveling wave modeling of nonlinear dynamics in multisection semiconductor lasers


  • Radziunas, Mindaugas
    ORCID: 0000-0003-0306-1266

2010 Mathematics Subject Classification

  • 78A60 35Q60 78M34 37N20 78-04 35-04

2010 Physics and Astronomy Classification Scheme

  • 42.55.Px 42.60.-v 02.30.Oz 02.60.Cb.


  • traveling wave model, semiconductor laser, narrow waveguide, edge emitting laser, multisection laser, ring laser, simulations, analysis




A hierarchy of 1 (time) + 1 (space) dimensional first-order partial differential equation (traveling wave) models is used for a description of dynamics in individual semiconductor lasers, various multisection semiconductor lasers, and coupled laser systems. Consequent modifications of the basic traveling wave model allow for taking into account different physical effects such as the gain dispersion, the thermal detuning, the spatial hole burning of carriers, the nonlinear gain saturation, or various carrier exchange processes in quantum dot lasers. For illustration, the model was applied for simulations of dynamics in complex ring laser with four branches of filtered feedback. Finally, several advanced techniques for model analysis such as calculation of instantaneous optical modes, finding of steady states, and numerical continuation and bifurcation analysis of the model equations were discussed and illustrated by example simulations.

Appeared in

  • J. Piprek, ed., vol. 2 of Handbook of Optoelectronic Device Modeling and Simulation: Lasers, Modulators, Photodetectors, Solar Cells, and Numerical Methods, CRC Press, Boca Raton, 2017, pp. 153--182.

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