title: Broadband chaos generated by an optoelectronic oscillator.
abstract: We study an optoelectronic time-delay oscillator that displays high-speed chaotic behavior with a flat, broad power spectrum. The chaotic state coexists with a linearly stable fixed point, which, when subjected to a finite-amplitude perturbation, loses stability initially via a periodic train of ultrafast pulses. We derive approximate mappings that do an excellent job of capturing the observed instability. The oscillator provides a simple device for fundamental studies of time-delay dynamical systems and can be used as a building block for ultrawide-band sensor networks.
authors.affiliation: Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: Kristine E
authors.initials: KE
authors.lastname: Callan
authors.forename: Lucas
authors.initials: L
authors.lastname: Illing
authors.forename: Zheng
authors.initials: Z
authors.lastname: Gao
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Gauthier
authors.forename: Eckehard
authors.initials: E
authors.lastname: Schöll