Synchronization of chaotic VCSELs by external chaotic signal parameter modulation
Chinese Optics Letters, Vol. 7, Issue 10, pp. 945-948
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- OCIS Codes:
- (190.0190) Nonlinear optics : Nonlinear optics
- (190.3100) Nonlinear optics : Instabilities and chaos
- (140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers
Citation
Wei Wang, Shenghai Zhang, Xingzhong Qian, and Yanbin Wang, "Synchronization of chaotic VCSELs by external chaotic signal parameter modulation," Chin. Opt. Lett. 7, 945-948 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-10-945
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Synchronization of chaotic vertical-cavity surface-emitting lasers (VCSELs) is achieved by external chaotic signal modulation successfully. Simulation indicates that we can get chaos synchronization if the intensity of external chaotic signal is large enough. First of all, we use direct current modulation to achieve the chaos of VCSELs, and determine the laser's chaotic state by analyzing time series of the output and the corresponding power spectrum. And then we achieve synchronization of the two chaotic systems by external chaotic signal parameter modulation. We also find that the larger the modulation intensity is, the easier it is to achieve synchronization for chaotic VCSELs. This approach can also be applied to systems with a number of modulated lasers.
© 2009 Chinese Optics Letters
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Author Affiliations
Information Engineering University
National University of Defense Technology
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