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Title

Chaos shift-keying encryption in chaotic external-cavity semiconductor lasers using a single-receiver scheme

AuthorsMirasso, Claudio R. ; Mulet, Josep; Masoller, Cristina
KeywordsInjection-locked oscillator
Nonlinear optics
Semiconductor lasers (dynamics)
Issue DateApr-2002
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Photonics Technology Letters 14(4): 456-458 (2002)
AbstractIn this letter, we numerically show that chaos shift-keying (CSK) encryption can be achieved by using a single receiver, thus providing a better performance when comparing with the traditional CSK scheme based on two receivers. We analyze the rate equation model for two unidirectionally coupled single-mode external-cavity semiconductor lasers operating in a chaotic regime. The message is encoded in the emitter by slightly varying its injection current. We find that under appropriate conditions, the receiver laser synchronizes to the chaotic emitter, filtering the encoded message and allowing message extraction.
Description3 pages, 4 figures.
Publisher version (URL)http://dx.doi.org/10.1109/68.992576
URIhttp://hdl.handle.net/10261/14837
DOI10.1109/68.992576
ISSN1041-1135
Appears in Collections:(IFISC) Artículos
(IMEDEA) Artículos
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