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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 22 — Nov. 15, 2011
  • pp: 4332–4334

Role of the phase in the identification of delay time in semiconductor lasers with optical feedback

Romain Modeste Nguimdo, Miguel C. Soriano, and Pere Colet  »View Author Affiliations

Optics Letters, Vol. 36, Issue 22, pp. 4332-4334 (2011)

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We consider a semiconductor laser with external optical feedback operating at a regime for which the delay time signature is extremely difficult to identify from the analysis of the intensity time series, using standard techniques. We show that such a delay signature can be successfully retrieved by computing the same quantifiers from the phase, the real or the imaginary part of the field, even in the presence of noise. Therefore, the choice of the observable is the determinant for parameter identification.

© 2011 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:

Original Manuscript: August 1, 2011
Revised Manuscript: October 6, 2011
Manuscript Accepted: October 6, 2011
Published: November 9, 2011

Romain Modeste Nguimdo, Miguel C. Soriano, and Pere Colet, "Role of the phase in the identification of delay time in semiconductor lasers with optical feedback," Opt. Lett. 36, 4332-4334 (2011)

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