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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 23 — Dec. 1, 2011
  • pp: 4632–4634

Dynamics of a semiconductor laser with polarization-rotated feedback and its utilization for random bit generation

Neus Oliver, Miguel C. Soriano, David W. Sukow, and Ingo Fischer  »View Author Affiliations

Optics Letters, Vol. 36, Issue 23, pp. 4632-4634 (2011)

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Chaotic semiconductor lasers have been proven attractive for fast random bit generation. To follow this strategy, simple robust systems and a systematic approach determining the required dynamical properties and most suitable conditions for this application are needed. We show that dynamics of a single mode laser with polarization-rotated feedback are optimal for random bit generation when characterized simultaneously by a broad power spectrum and low autocorrelation. We observe that successful random bit generation also is sensitive to digitization and postprocessing procedures. Applying the identified criteria, we achieve fast random bit generation rates (up to 4 Gbit / s ) with minimal postprocessing.

© 2011 Optical Society of America

OCIS Codes
(140.1540) Lasers and laser optics : Chaos
(140.2020) Lasers and laser optics : Diode lasers
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.3100) Nonlinear optics : Instabilities and chaos
(060.4785) Fiber optics and optical communications : Optical security and encryption

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 8, 2011
Revised Manuscript: October 18, 2011
Manuscript Accepted: October 19, 2011
Published: November 28, 2011

Neus Oliver, Miguel C. Soriano, David W. Sukow, and Ingo Fischer, "Dynamics of a semiconductor laser with polarization-rotated feedback and its utilization for random bit generation," Opt. Lett. 36, 4632-4634 (2011)

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