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Now showing items 1-5 of 5

  • Dynamics of two laterally coupled semiconductor lasers: strong- and weak-coupling theory. 

    Erzgraber, H.; Wieczorek, Sebastian; Krauskopf, Bernd (American Physical Society, 2008)
    The stability and nonlinear dynamics of two semiconductor lasers coupled side to side via evanescent waves are investigated by using three different models. In the composite-cavity model, the coupling between the lasers ...
  • Excitability in ramped systems: the compost-bomb instability 

    Wieczorek, Sebastian; Ashwin, Peter; Luke, Catherine M.; Cox, Peter M. (Royal Society, 2011)
    The paper studies a novel excitability type where a large excitable response appears when a system’s parameter is varied gradually, or ramped, above some critical rate. This occurs even though there is a (unique) stable ...
  • Shear-induced bifurcations and chaos in models of three coupled lasers 

    Blackbeard, Nicholas; Erzgraber, H.; Wieczorek, Sebastian (Society for Industrial and Applied Mathematics, 2011)
    We study nonlinear dynamics in a linear array of three coupled laser oscillators with rotational $\mathbb{S}^1$ and reflectional $\mathbb{Z}_2$ symmetry. The focus is on a coupled-laser model with dependence on three ...
  • Stochastic bifurcation in noise-driven lasers and Hopf oscillators. 

    Wieczorek, Sebastian (American Physical Society, 2009)
    This paper considers nonlinear dynamics in an ensemble of uncoupled lasers, each being a limit-cycle oscillator, which are driven by the same external white Gaussian noise. As the external-noise strength increases, there ...
  • Tipping points in open systems: bifurcation, noise-induced and rate-dependent examples in the climate system 

    Ashwin, Peter; Wieczorek, Sebastian; Vitolo, Renato; Cox, Peter M. (The Royal Society, 2012)
    Tipping points associated with bifurcations (B-tipping) or induced by noise (N-tipping) are recognized mechanisms that may potentially lead to sudden climate change. We focus here on a novel class of tipping points, where ...