Pulse-train solutions and excitability in an optoelectronic oscillator


Journal Article

We study an optoelectronic time-delay oscillator with bandpass filtering for different values of the filter bandwidth. Our experiments show novel pulse-train solutions with pulse widths that can be controlled over a three-order-of-magnitude range, with a minimum pulse width of ∼150 ps. The equations governing the dynamics of our optoelectronic oscillator are similar to the FitzHugh-Nagumo model from neurodynamics with delayed feedback in the excitable and oscillatory regimes. Using a nullclines analysis, we derive an analytical proportionality between pulse width and the low-frequency cutoff of the bandpass filter, which is in agreement with experiments and numerical simulations. Furthermore, the nullclines help to describe the shape of the waveforms. © Europhysics Letters Association.

Full Text

Cited Authors

  • Rosin, DP; Callan, KE; Gauthier, DJ; Schöll, E

Published Date

  • November 1, 2011

Published In

Volume / Issue

  • 96 / 3

Electronic International Standard Serial Number (EISSN)

  • 1286-4854

International Standard Serial Number (ISSN)

  • 0295-5075

Digital Object Identifier (DOI)

  • 10.1209/0295-5075/96/34001

Citation Source

  • Scopus