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An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
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Real-time all-optical random numbers based on optical Boolean chaos.

Luxiao Sang, Yuanyuan Guo, Haifang Liu

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    |March 17, 2021
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    This study introduces an all-optical random number generation system using a chaotic entropy source. The novel method achieves high-speed, testable random number generation without photoelectric conversion, enabling device integration.

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    Area of Science:

    • Optoelectronics
    • Information Security
    • Nonlinear Dynamics

    Background:

    • Random number generation is crucial for secure communications and simulations.
    • Existing methods often rely on electronic components and photoelectric conversion.
    • There is a need for high-speed, integrated all-optical solutions.

    Purpose of the Study:

    • To propose and demonstrate a novel all-optical random number generation (RNG) system.
    • To leverage optical Boolean chaotic entropy sources for efficient RNG.
    • To achieve high-speed and integrable RNG without photoelectric conversion.

    Main Methods:

    • The system integrates an optical Boolean chaotic entropy source with an optical D flip-flop.
    • The chaotic entropy source utilizes an optical XOR gate and self-delayed feedback.
    • The optical D flip-flop comprises optical AND gates and an SR latch.

    Main Results:

    • The proposed system generates all-optical random numbers at a testable rate of 5 Gb/s.
    • The optical Boolean chaotic signal exhibits complexity and binarization for effective random number extraction.
    • The entire RNG process is performed in the optical domain, eliminating the need for photoelectric conversion.

    Conclusions:

    • The developed all-optical RNG system offers a high-speed and efficient solution.
    • The integration of optical components facilitates device miniaturization and potential for broader applications.
    • This approach represents a significant advancement in optical information processing and security.