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Opt Lett. 2009 Apr 15;34(8):1144-6.

Route to broadband chaos in a chaotic laser diode subject to optical injection.

Author information

  • 1Department of Physics, College of Science, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.

Abstract

We experimentally and numerically demonstrate a route to bandwidth-enhanced chaos that is induced by an additional optical injection for a chaotic laser diode with optical feedback. The measured and calculated optical spectra consistently reveal that the mechanism of bandwidth enhancement is the interaction between the injection and chaotic laser field via beating. The bandwidth can be maximized only when the injected light is detuned into the edge of the optical spectrum of the chaotic laser field and the beating frequency exceeds the original bandwidth. The simulated dynamics maps indicate that 20 GHz broadband chaos can be obtained by commonly used laser diodes.

PMID:
19370098
[PubMed]
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