Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Low-frequency fluctuations (LLFs) in semiconductor lasers subject to time-delayed optical feedback from external reflectors have been experimentally observed and theoretically studied for the past two decades. Yet recently a question has come into focus: whether these fluctuations are only a transient phenomenon. This Letter addresses this issue from the viewpoint of deterministic chaotic transitions. In particular, we investigate the single-mode single-delay Lang-Kobayashi equations by constructing a scheme that allows for a detailed bifurcation analysis and, consequently, an understanding of the coexistence of LFFs and stable emission on the maximum gain mode, the latter's being the subject of recent experiments [Phys. Rev. A 60 (1999) 634]. Our computations suggest that LFFs can be either transient or sustained, depending on the dynamical interplay between the maximum gain mode and a chaotic set. (C) 2000 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)350-356
Number of pages7
JournalPhysics Letters A
Volume267
Issue number5-6
Publication statusPublished - 27 Mar 2000

Keywords

  • WEAK OPTICAL FEEDBACK
  • COHERENCE COLLAPSE
  • CHAOTIC ITINERANCY
  • INSTABILITY
  • BIFURCATION
  • ATTRACTORS
  • LINEWIDTH
  • SUBJECT
  • LANG
  • MODE

Cite this

Davidchack, R. L., Lai, Y. C., Gavrielides, A., Kovanis, V., & Lai, Y-C. (2000). Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers. Physics Letters A, 267(5-6), 350-356.

Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers. / Davidchack, R L ; Lai, Y C ; Gavrielides, A ; Kovanis, V ; Lai, Ying-Cheng.

In: Physics Letters A, Vol. 267, No. 5-6, 27.03.2000, p. 350-356.

Research output: Contribution to journalArticle

Davidchack, RL, Lai, YC, Gavrielides, A, Kovanis, V & Lai, Y-C 2000, 'Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers', Physics Letters A, vol. 267, no. 5-6, pp. 350-356.
Davidchack RL, Lai YC, Gavrielides A, Kovanis V, Lai Y-C. Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers. Physics Letters A. 2000 Mar 27;267(5-6):350-356.
Davidchack, R L ; Lai, Y C ; Gavrielides, A ; Kovanis, V ; Lai, Ying-Cheng. / Dynamical origin of low frequency fluctuations in external cavity semiconductor lasers. In: Physics Letters A. 2000 ; Vol. 267, No. 5-6. pp. 350-356.
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