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Coupled optical excitable cells.

Alejandro M Yacomotti1, Gabriel B Mindlin, Massimo Giudici

  • 1Departamento de Física, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Pabellón I (1428) Buenos Aires, Argentina. yaco@df.uba.ar

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 9, 2002
PubMed
Summary

This study examines coupled semiconductor lasers with optical feedback, revealing complex dynamics. The research models these optical excitable cells using deterministic equations and noise to understand their behavior.

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Area of Science:

  • Nonlinear Dynamics
  • Optoelectronics
  • Complex Systems

Background:

  • Optical excitable cells, such as semiconductor lasers with optical feedback, exhibit complex dynamic behaviors.
  • Understanding the interplay between deterministic rules and noise is crucial for characterizing these systems.

Purpose of the Study:

  • To experimentally investigate the dynamics of two coupled optical excitable cells.
  • To analyze observed dynamics using statistical properties and phase space reconstruction.
  • To develop a theoretical model capturing the essential features of the experimental dynamics.

Main Methods:

  • Experimental setup involving two coupled semiconductor lasers with optical feedback.
  • Time series analysis and phase space reconstruction for characterizing dynamics.

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  • Development of a mathematical model based on deterministic equations with added noise.

    • Main Results:

    • Observed complex dynamics in the coupled laser system.
    • Successful characterization of dynamics through statistical analysis and phase space reconstruction.
    • A validated model that captures essential dynamic features, including the role of noise.

    Conclusions:

    • The dynamics of coupled optical excitable cells can be effectively studied through a combination of experimental observation and theoretical modeling.
    • The developed model provides insights into the behavior of excitable systems and the impact of coupling terms.
    • This work contributes to the understanding of nonlinear phenomena in optoelectronic devices.