Analytical expression for Risken-Nummedal-Graham-Haken instability threshold in quantum cascade lasers.

@article{Vukovic2016AnalyticalEF,
  title={Analytical expression for Risken-Nummedal-Graham-Haken instability threshold in quantum cascade lasers.},
  author={N Vukovic and J. Radovanovic and V. Milanovic and Dmitri L. Boiko},
  journal={Optics express},
  year={2016},
  volume={24 23},
  pages={26911-26929}
}
We have obtained a closed-form expression for the threshold of Risken-Nummedal-Graham-Haken (RNGH) multimode instability in a Fabry-Pérot (FP) cavity quantum cascade laser (QCL). This simple analytical expression is a versatile tool that can easily be applied in practical situations which require analysis of QCL dynamic behavior and estimation of its RNGH multimode instability threshold. Our model for a FP cavity laser accounts for the carrier coherence grating and carrier population grating as… CONTINUE READING

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