Suppressed time delay signature in chaotic nanolasers with hybrid feedback

Amr Elsonbaty, Salem F. Hegazy, Salah S.A. Obayya

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, we investigate the presence of time delay (TD) signature in the chaotic emission of semiconductor metalclad nanolasers subject to different types of optical feedbacks (OFs). We first examine the TD signatures in the cases when all-optical feedback via either conventional mirror, phase conjugate mirror, or grating mirror is employed. Second, we propose a mixed all-optical/electrooptic feedback scheme for concurrent suppression of TD feature in chaotic output emission. The mathematical model for proposed scheme is presented to integrate both the optical and electrooptic time delays. The concealment of TD signature is then investigated by means of the autocorrelation function. The results reveal that the chaotic output signal in each case has well eliminated TD signature at particular operational regions within which the system is more appropriate for applications related to secure communications and ultra-fast physical random number generators.

Original languageEnglish
Title of host publicationSemiconductor Lasers and Laser Dynamics VIII
EditorsRainer Michalzik, Krassimir Panajotov, Marc Sciamanna
PublisherSPIE
ISBN (Electronic)9781510618909
DOIs
StatePublished - 2018
Externally publishedYes
EventSemiconductor Lasers and Laser Dynamics VIII 2018 - Strasbourg, France
Duration: 23 Apr 201826 Apr 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10682
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSemiconductor Lasers and Laser Dynamics VIII 2018
Country/TerritoryFrance
CityStrasbourg
Period23/04/1826/04/18

Keywords

  • Nanolasers
  • Optical chaos
  • optical feedback
  • time delay (TD) suppression

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