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Optics Letters

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  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2541–2543

Loss of time-delay signature in chaotic semiconductor ring lasers

Romain Modeste Nguimdo, Guy Verschaffelt, Jan Danckaert, and Guy Van der Sande  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2541-2543 (2012)
http://dx.doi.org/10.1364/OL.37.002541


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Abstract

We investigate the possibility of concealing the time-delay signatures in semiconductor ring lasers (SRLs) with external feedback. Through the autocorrelation and delayed mutual information, we report different scenarios leading to simultaneous time-delay concealment both in the intensity and the phase dynamics of such systems. In particular, the fact that such delay signatures can be eliminated in a SRL subject to short feedback constitutes a step toward the possibility of implementing secure communication schemes and random number generators on chip.

© 2012 Optical Society of America

OCIS Codes
(140.1540) Lasers and laser optics : Chaos
(060.4785) Fiber optics and optical communications : Optical security and encryption
(250.5960) Optoelectronics : Semiconductor lasers

ToC Category:
Optoelectronics

History
Original Manuscript: March 14, 2012
Revised Manuscript: April 27, 2012
Manuscript Accepted: May 6, 2012
Published: June 21, 2012

Citation
Romain Modeste Nguimdo, Guy Verschaffelt, Jan Danckaert, and Guy Van der Sande, "Loss of time-delay signature in chaotic semiconductor ring lasers," Opt. Lett. 37, 2541-2543 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-13-2541


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