Broadband chaos generated by an optoelectronic oscillator.
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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.
Published Version (Please cite this version)10.1103/PhysRevLett.104.113901
Publication InfoCallan, KE; Gao, Z; Gauthier, Daniel J; Illing, L; & Schöll, E (2010). Broadband chaos generated by an optoelectronic oscillator. Phys Rev Lett, 104(11). pp. 113901. 10.1103/PhysRevLett.104.113901. Retrieved from http://hdl.handle.net/10161/5084.
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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