Low-frequency fluctuations in semiconductor lasers with optical feedback are induced with noise

M EGUIA; G. B. MINDLIN; M. GIUDICI

PHYSICAL REVIEW E - STATISTICAL PHYSICS, PLASMAS, FLUIDS AND RELATED INTERDISCIPLINARY TOPICS

APS

Año: 1998 vol. 58 p. 2636 - 2639

1063-651X

Semiconductor lasers with optical feedback present a regime in which irregular dropout events are observed (low-frequency fluctuations). This phenomenon has been interpreted in terms of a purely deterministic model. Recently, it was proposed that these lasers behave as an excitable medium and that the low frequency fluctuations are anticipated by noise. We study analytically and numerically the statistics of the firing processes predicted by this dynamical scenario and discuss how it compares with the results reported in the literature.