Pulse-train solutions and excitability in an optoelectronic oscillator
Abstract
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.
Type
Journal articlePermalink
https://hdl.handle.net/10161/5102Published Version (Please cite this version)
10.1209/0295-5075/96/34001Publication Info
Rosin, DP; Callan, KE; Gauthier, DJ; & Schöll, E (2011). Pulse-train solutions and excitability in an optoelectronic oscillator. EPL, 96(3). pp. 1-6. 10.1209/0295-5075/96/34001. Retrieved from https://hdl.handle.net/10161/5102.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
Collections
More Info
Show full item recordScholars@Duke
Daniel J. Gauthier
Research Professor of Physics
Prof. Gauthier is interested in a broad range of topics in the fields of nonlinear
and quantum optics, and nonlinear dynamical systems.
In the area of optical physics, his group is studying the fundamental characteristics
of highly nonlinear light-matter interactions at both the classical and quantum levels
and is using this understanding to develop practical devices.
At the quantum level, his group has three major efforts in the area of quantum communication
and networking. I

Articles written by Duke faculty are made available through the campus open access policy. For more information see: Duke Open Access Policy
Rights for Collection: Scholarly Articles
Works are deposited here by their authors, and represent their research and opinions, not that of Duke University. Some materials and descriptions may include offensive content. More info