Disorder-induced localization of excitability in an array of coupled lasers

M. Lamperti, A. M. Perego

Research output: Contribution to journalArticlepeer-review


We report on the localization of excitability induced by disorder in an array of coupled semiconductor lasers with a saturable absorber. Through numerical simulations we show that the exponential localization of excitable waves occurs if a certain critical amount of randomness is present in the coupling coefficients among the lasers. The results presented in this Rapid Communication demonstrate that disorder can induce localization in lattices of excitable nonlinear oscillators, and can be of interest in the study of photonics-based random networks, neuromorphic systems, and, by analogy, in biology, in particular, in the investigation of the collective dynamics of neuronal cell populations.

Original languageEnglish
Article number041803
JournalPhysical Review A
Issue number4
Publication statusPublished - 23 Oct 2017


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