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Proceedings Paper

Cryptographic scheme using chaotic laser diodes subject to incoherent optical feedback
Author(s): Fabien Rogister; Alexandre Locquet; Didier Pieroux; Patrice Megret; Olivier Deparis; Michel Blondel
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Paper Abstract

We demonstrate numerically a secure communication scheme based on the synchronization of two chaotic laser diodes that are respectively subjected to incoherent optical feedback and incoherent optical injection. In this scheme, the optical fields emitted by the two lasers and the fields that are fed back and injected into these two lasers have orthogonal polarizations. Consequently, the external fields do not coherently interact with the lasing fields but only act on the population inversions. Synchronization of both lasers does not require fine tuning of their optical frequencies neither accurate control of the external cavity lengths contrary to the cryptographic systems based on conventional optical feedback. The message encoding/decoding is achieved by chaos shift keying.

Paper Details

Date Published: 9 July 2001
PDF: 11 pages
Proc. SPIE 4283, Physics and Simulation of Optoelectronic Devices IX, (9 July 2001); doi: 10.1117/12.432587
Show Author Affiliations
Fabien Rogister, Faculte Polytechnique de Mons (Belgium)
Alexandre Locquet, Faculte Polytechnique de Mons (France)
Didier Pieroux, Univ. Libre de Bruxelles (Belgium)
Patrice Megret, Faculte Polytechnique de Mons (Belgium)
Olivier Deparis, Faculte Polytechnique de Mons (United Kingdom)
Michel Blondel, Faculte Polytechnique de Mons (Belgium)

Published in SPIE Proceedings Vol. 4283:
Physics and Simulation of Optoelectronic Devices IX
Yasuhiko Arakawa; Peter Blood; Marek Osinski, Editor(s)

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