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Detailed field model for DH stripe lasers

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Abstract

The field problem for DH stripe lasers is solved, using a two-dimensional model; the field variation perpendicular to the junction plane is found from a slab model, whereas the transverse variation is calculated using a method applicable to any complex permittivity profile. The origin of transverse variations in the permittivity is described by including current spreading, temperature variations and the carrier profile. The permittivity is used directly and not fitted by a parabola or a step. The fact that a large fraction of the intensity may be propagating in then-andp-layers, is taken into account by introduction of an effective permittivity. The model is applied to a practical example, and the threshold current is found as a function of active-layer thickness and stripe width. It is described how the model can be used both below and above the threshold.

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Authors and Affiliations

  1. Electromagnetics Institute, Technical University of Denmark, DK-2800, Lyngby, Denmark

    J. Buus

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Buus, J. Detailed field model for DH stripe lasers. Opt Quant Electron 10, 459–474 (1978). https://doi.org/10.1007/BF00619847

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  • DOI: https://doi.org/10.1007/BF00619847

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