Broadband chaos synchronization and communication based on mutually coupled VCSELs subject to a bandwidth-enhanced chaotic signal injection

Based on two mutually coupled vertical-cavity surface-emitting lasers (MC-VCSELs) subject to a bandwidth-enhanced chaotic signal injection, a bidirectional dual-channel broadband chaos communication system is proposed and investigated numerically. The results show that, adopting a bandwidth-enhanced...

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Bibliographic Details
Published in:Nonlinear dynamics 2014-04, Vol.76 (1), p.399-407
Main Authors: Deng, T., Xia, G. Q., Wu, Z. M.
Format: Article
Language:English
Subjects:
Automotive Engineering
Bandwidths
Bidirectional
Broadband
Chaos theory
Classical Mechanics
Communication
Communications systems
Control
Dynamical Systems
Encryption
Engineering
Masking
Mathematical models
Mechanical Engineering
Original Paper
Signal injection
Synchronism
Synchronization
Vertical cavity surface emission lasers
Vibration
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Summary:Based on two mutually coupled vertical-cavity surface-emitting lasers (MC-VCSELs) subject to a bandwidth-enhanced chaotic signal injection, a bidirectional dual-channel broadband chaos communication system is proposed and investigated numerically. The results show that, adopting a bandwidth-enhanced chaotic signal (about 33 GHz) from a driving VCSEL (D-VCSEL) to drive two MC-VCSELs, high-quality isochronal chaos synchronization with over 30 GHz bandwidth between two corresponding LP modes in the two MC-VCSELs can be obtained under proper driving injection, and this synchronization has high tolerance to mismatched intrinsic parameters and frequency detuning. Moreover, based on the broadband chaos synchronization of two corresponding LP modes, the bidirectional dual-channel high-speed chaos communication can be realized and the communication performances have also been preliminarily examined under chaos masking (CMS) encryption scheme.
ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-013-1134-y