Synchronization of chaotic injected-laser systems and its application to optical cryptography

Author

Annovazzi-Lodi, Valerio ; Donati, Silvano ; Scire, Alessandro

Author_Institution

Dipartimento di Elettronica, Pavia Univ., Italy

Volume

32

Issue

6

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

953

Lastpage

959

Abstract

We demonstrate that two chaotic systems, each made by two coupled semiconductor lasers, can be synchronized using direct-optical feedback. The robustness of the proposed synchronization scheme against mismatch of source parameters and difference in starting conditions is tested by numerical simulations. Applications to secure data transmission are proposed, namely chaotic masking and chaotic shift keying (CSK)

Keywords

cryptography; laser feedback; optical chaos; optical communication; optical couplers; semiconductor lasers; synchronisation; chaotic injected-laser systems; chaotic masking; chaotic shift keying; chaotic systems; coupled semiconductor lasers; direct-optical feedback; mismatch; numerical simulations; optical cryptography; secure data transmission; source parameters; starting conditions; synchronization; synchronization scheme; Chaos; Chaotic communication; Cryptography; Fiber nonlinear optics; High speed optical techniques; Laser feedback; Optical attenuators; Optical feedback; Optical modulation; Semiconductor lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.502371

Filename

502371