期刊
PHYSICAL REVIEW LETTERS
卷 85, 期 15, 页码 3157-3160出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.85.3157
关键词
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We study a multimode semiconductor laser subject to a moderate optical feedback. The steady state is destabilized by either a simple Hopf bifurcation leading to in phase dynamics or by a degenerate Hopf bifurcation leading to antiphase dynamics. The degenerate bifurcation is also a source of multiple coexisting attractors. We show that a simple interpretation of the low frequency fluctuations in the multimode regime is provided by a chaotic itinerancy among the many coexisting unstable attractors produced by the degenerate Hopf bifurcation.
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