Controlling periodic patterns in optical turbulence

Weiping Lu, Dejin Yu, Robert G. Harrison

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Spatiotemporal chaos occurs when motion excited in local regions interact to destroy the spatial coherence of the system concurrent with the onset of temporal chaos. An algorithm for controlling systems based on the idea of stabilization of unstable periodic patterns in spatiotemporal chaos is presented. A numerical demonstration of stabilization of spatial periodic patterns embedded in turbulence in a PDE system describing a high aspect ratio laser is also presented. The control algorithm following feedback control strategy using a feedback signal derived from one of the variables is assigned to perturb this variable. Also discussed is the generality and robustness of this control algorithm and its implementation in experiments.

Original languageEnglish
Title of host publicationProceedings of the 1996 European Quantum Electronics Conference
Number of pages1
Publication statusPublished - 1996
Event1996 Conference on Lasers and Electro-Optics Europe - Hamburg, Germany
Duration: 8 Sept 199613 Sept 1996


Conference1996 Conference on Lasers and Electro-Optics Europe


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