Simulation of Gb/s free space optical secure communication using interband cascade laser chaos

We theoretically explore Gb/s message encryption in free space communications exploiting synchronized mid-infrared chaos from unidirectionally coupled interband cascade lasers (ICLs) with optical feedback. The achievable message encryption rate depends on the chaos bandwidth and relaxation frequency...

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Bibliographic Details
Published inOptics communications Vol. 559; p. 130424
Main Authors Han, Hong, Xu, Jiada, Cheng, Xumin, Jia, Zhiwei, Zhang, Jianguo, Shore, K. Alan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.05.2024
Subjects
Chaos laser communication
Interband cascade laser
Mid-infrared lasers
Mid-infrared lasers
Interband cascade laser
Chaos laser communication
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ISSN0030-4018
DOI10.1016/j.optcom.2024.130424

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Summary:We theoretically explore Gb/s message encryption in free space communications exploiting synchronized mid-infrared chaos from unidirectionally coupled interband cascade lasers (ICLs) with optical feedback. The achievable message encryption rate depends on the chaos bandwidth and relaxation frequency oscillation of the ICL which in turn, are determined by the bias current and the number of stages of the ICL. It is shown that message encryption rates up to 4 Gb/s may be obtained with bit error rate (BER) compatible with regular telecommunication systems requirements.
ISSN:0030-4018
DOI:10.1016/j.optcom.2024.130424