Nonlinear Dynamics of Vertical-Cavity Surface-Emitting Lasers

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65 Citations (Scopus)


The dependence of the transient response of a vertical-cavity surface-emitting laser (VCSEL) on its aperture size is investigated subject to direct current modulation and external optical feedback. It is shown that lasers with small aperture size suppress higher order bifurcations and chaos even under large-signal modulation and external optical feedback. Furthermore, the noise characteristics of VCSEL's under the influence of external optical feedback are studied via the calculation of relative intensity noise. It is found that the level of external optical feedback for the onset of coherence collapse is high for devices with small aperture size. On the other hand, the small-signal response of lasers is also analyzed through the calculation of third-order harmonic distortion. It is shown that harmonic distortion is minimized in small devices. Therefore, VCSEL's with small aperture size have better immunity to irregular response under direct current modulation and external optical feedback.

Original languageEnglish
Pages (from-to)332-340
Number of pages9
JournalIEEE Journal of Quantum Electronics
Issue number3
Publication statusPublished - Mar 1999
Externally publishedYes


  • Bifurcation diagrams
  • Chaos
  • Direct modulation
  • External optical feedback
  • Semiconductor device modeling
  • Surface-emitting devices

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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