Phys. Rev. E 55, 6414–6418 (1997)Andronov bifurcation and excitability in semiconductor lasers with optical feedbackReceived 16 October 1996; published in the issue dated June 1997 We experimentally investigate the dynamical behavior of a semiconductor laser with optical feedback. We show that noise plays an important role close to the instability threshold, while determinism controls the so-called coherence collapse regime. We identify the bifurcation which is at the origin of the low frequency fluctuations. It is the result of a collision between a stable fixed point and a saddle point (Andronov's bifurcation). We provide experimental proof that the laser with optical feedback behaves as an excitable medium. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.55.6414
DOI:
10.1103/PhysRevE.55.6414
PACS:
05.90.+m, 42.55.Px
See AlsoReply: M. Giudici, C. Green, G. Giacomelli, U. Nespolo, and J. R. Tredicce, Reply to “Comment on ‘Andronov bifurcation and excitability in semiconductor lasers with optical feedback’ ”, Phys. Rev. E 58, 4043 (1998). |
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