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Phys. Rev. Lett. 87, 044101 (2001) [4 pages]

Detecting Phase Synchronization in a Chaotic Laser Array

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David J. DeShazer, Romulus Breban, Edward Ott *, and Rajarshi Roy †
Department of Physics and Institute for Research in Electronics and Applied Physics, University of Maryland–College Park, College Park, Maryland 20742

Received 6 February 2001; published 6 July 2001

Detection of phase synchronization of coupled chaotic oscillators is examined experimentally for the case of a linear laser array. Phase variables are computed by applying a Gaussian filter, peaked at a positive frequency, to the signal obtained from the intensity time series of the individual lasers. Relationships between different frequency components of the oscillator dynamics that are not otherwise apparent are unambiguously detected.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.87.044101
DOI: 10.1103/PhysRevLett.87.044101
PACS: 05.45.Ac, 05.45.Tp, 05.45.Xt, 42.55.-f

* Also in the Department of Electrical and Computer Engineering.
† Also in the Institute for Physical Science and Technology.

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