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Electromagnetic field computation in semiconductor laser resonators.

Tuomas Vallius1, Jani Tervo, Pasi Vahimaa

  • 1Department of Physics, University of Joensuu, Finland. Tuomas.Vallius@joensuu.fi

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|April 12, 2006
PubMed
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This study introduces a rigorous electromagnetic method for analyzing semiconductor laser cavities. The Fourier modal method accurately predicts laser fields and resonance frequencies for various geometries.

Area of Science:

  • Optics and Photonics
  • Computational Electromagnetics

Background:

  • Semiconductor lasers are crucial optoelectronic devices.
  • Accurate modeling of electromagnetic fields within laser cavities is essential for device design and performance optimization.

Purpose of the Study:

  • To apply a rigorous electromagnetic method based on diffraction theory to analyze fields in semiconductor laser cavities.
  • To evaluate fundamental-mode intracavity and near-field distributions for selected geometries.
  • To predict resonance frequencies of semiconductor laser resonators.

Main Methods:

  • Utilized a rigorous electromagnetic method based on the Fourier modal method (FMM).
  • Applied FMM for analysis of infinitely periodic resonators.
  • Employed absorbing boundary conditions for high accuracy in single resonators.

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Main Results:

  • Evaluated fundamental-mode intracavity and near-field distributions for specific laser cavity geometries.
  • Successfully predicted resonance frequencies.

Conclusions:

  • The Fourier modal method provides a rigorous and accurate approach for analyzing electromagnetic fields in semiconductor laser cavities.
  • This method is effective for predicting key performance parameters like resonance frequencies.