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Título : ON/OFF phase shift keying for chaos-encrypted communication using external-cavity semiconductor lasers
Autor : Heil, Tilmann, Mulet, Josep, Fischer, Ingo, Mirasso, Claudio R., Peil, Michael, Colet, Pere, Elsässer, Wolfgang
Palabras clave : Chaos
Optical feedback
Semiconductor laser
Fecha de publicación : Sep-2002
Editor: Institute of Electrical and Electronics Engineers
Resumen: Synchronization phenomena of two chaotically emitting semiconductor lasers subject to delayed optical feedback are investigated. The lasers are unidirectionally coupled via their optical fields. Our experimental and numerical studies demonstrate that the relative optical feedback phase is of decisive importance: a characteristic synchronization scenario evolves under variation of the relative optical-feedback phase mediating cyclically between chaos synchronization in conjunction with coherent fields, and uncorrelated states in conjunction with incoherent fields. As a key result, we propose, and numerically demonstrate, a novel ON/OFF phase shift keying method opening up new perspectives for applications in communication systems using chaotic carriers.
Descripción : 9 pages, 8 figures, 1 table.
Versión del editor:
ISSN: 0018-9197
DOI: 10.1109/JQE.2002.801950
Citación : IEEE Journal of Quantum Electronics 38(9): 1162-1170 (2002)
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