Chaotic transitions and low-frequency fluctuations in semiconductor lasers with optical feedback

R L Davidchack, Y C Lai, A Gavrielides, V Kovanis, Ying-Cheng Lai

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23 Citations (Scopus)

Abstract

This paper examines the dynamical origin of low-frequency fluctuations (LFFs) in semiconductor lasers subject to time-delayed Lang-Kobayashi equations for a laser pumped near threshold. We construct a bifurcation analysis scheme that enables the classification of the different operation regimes of the laser. We use the scheme to study the coexistence of the LFFs and stable emission on the maximum gain mode (MGM), which was the subject of recent experiments [T. Hell, I. Fischer, W. Elsasser, Phys. Rev. A 60 (1999) 634]. Our computations suggest that as the feedback level increases, the regime of sustained LFFs alternates with regions of transient LFFs, where the laser can achieve stabilization on the MGM. Exploration of the parameter space reveals strong dependence of the structure of the LFF dynamics and the coexistence regime on the value of the linewidth enhancement factor. (C) 2000 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)130-143
Number of pages14
JournalPhysica. D, Nonlinear Phenomena
Volume145
Issue number1-2
Publication statusPublished - 15 Oct 2000

Keywords

  • Lang-Kobayashi equations
  • poincare sections
  • transient chaos
  • COHERENCE COLLAPSE
  • KOBAYASHI MODEL
  • EXTERNAL CAVITY
  • DYNAMICS
  • SYSTEMS
  • INJECTION
  • LANG
  • SYNCHRONIZATION
  • BIFURCATION
  • RESONATORS

Cite this

Davidchack, R. L., Lai, Y. C., Gavrielides, A., Kovanis, V., & Lai, Y-C. (2000). Chaotic transitions and low-frequency fluctuations in semiconductor lasers with optical feedback. Physica. D, Nonlinear Phenomena, 145(1-2), 130-143.