Phys. Rev. Lett. 100, 044101 (2008) [4 pages]Coarse Grained Variables and Deterministic Chaos in an Excitable SystemReceived 20 February 2006; published 28 January 2008 Temporal coarse graining was applied to the dynamical variables of a semiconductor laser with optical feedback. The chaotic low frequency fluctuations obtained in numerical and experimental data are shown to have properties of a self-excitable deterministic system. External exciting noise is replaced by the ultrafast chaotic oscillations of the system. A low dimensional coarse-grained phase space is defined and time constants are introduced and measured for the exponential drop and recovery of the randomly excited equally shaped spikes. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.044101
DOI:
10.1103/PhysRevLett.100.044101
PACS:
05.45.Pq, 64.60.F−
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.