Secured multiplexed optical fiber transmission scheme using chaotic signal
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Rahul Kaushik
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Vineet Khandelwal
Abstract
A secure optical transmission through fiber link is proposed where chaotic masking of original signal is implemented. The chaotic based transmission is largely preferred for long distance communication that includes personal, commercial and military applications. The information in secure communication system is concealed by the chaotic signal. By integrating unpredictable chaotic signal with input data stream, the system effectively masks transmitted information, rendering it indistinguishable from random noise to unauthorized entities. In proposed design, channel capacity is enhanced by implementing wavelength division multiplexing (WDM) and polarization division multiplexing (PDM) to simultaneously send data over eight multiplexed streams at high speed. A detailed simulation, demonstrates reliable data recovery at the receiver via synchronized chaos generation and optical subtraction. This achieves secure and high-speed transmission with low bit error rate (BER) and improved received power levels over longer distances. The system performance is analyzed for BER, Q-factor, received power and signal to noise ratio (SNR) levels.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: Authors declare that no Large Language Models (LLMs), Artificial Intelligence (AI), or Machine Learning (ML) tools used in the preparation of this manuscript.
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Conflict of interest: Authors declare that they have no financial or any other conflicts of interest that could have appeared to influence the work reported in this manuscript.
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Research funding: Authors declare that no funds, grants, or other support were received during the preparation of this manuscript.
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Data availability: Not applicable.
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