Low pump limit of the bifurcation to periodic intensities in a semiconductor laser subject to external optical feedback

G. Lythe, T. Erneux, A. Gavrielides, V. Kovanis

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24 Citations (Scopus)

Abstract

The conditions for a bifurcation to periodic intensities (Hopf bifurcation) for low values of the pump current are examined using singular perturbation methods. We show that the frequency of the oscillations at the bifurcation point remains close to the relaxation oscillation frequency of the solitary laser until the pump parameter is close to its effective threshold value. This part of our analysis adds substance to previous estimates of the frequency of the oscillations, which were guided by experiments. In the second part of our analysis, we show that, very close to threshold, the frequency exhibits a sharp transition from the relaxation oscillation frequency to a frequency proportional to the external cavity frequency (i.e., 2π/τ, where τ is the external round-trip time).

Original languageEnglish
Pages (from-to)4443-4448
Number of pages6
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume55
Issue number6
Publication statusPublished - Jun 1997
Externally publishedYes

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semiconductor lasers
pumps
oscillations
thresholds
perturbation
cavities
estimates
lasers

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Low pump limit of the bifurcation to periodic intensities in a semiconductor laser subject to external optical feedback. / Lythe, G.; Erneux, T.; Gavrielides, A.; Kovanis, V.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 55, No. 6, 06.1997, p. 4443-4448.

Research output: Contribution to journalArticle

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