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Coupled optical excitable cells

Yacomotti, A.M.; Mindlin, G.B.; Giudici, M.; Balle, S.; Barland, S.; Tredicce, J.
Physical Review E 66, 036227 (1-11) (2002)

In this work we investigate experimentally the dynamics of two coupled optical excitable cells, namely, two semiconductor lasers with optical feedback. We analyze the dynamics observed in terms of the statistical properties of the time series and in terms of the phase space reconstruction from the data. We build a model based on a simple set of deterministic equations (on a two torus) plus noise in order to capture the essential features of the dynamics observed. We discuss the validity of our theoretical results in terms of families of excitable systems and coupling terms