Presentation + Paper
10 October 2020 Wideband physical random optical chaos generation using semiconductor lasers
Author Affiliations +
Abstract
In recent years, the generation of wideband l random optical chaos has attracted extensive interest for its extensive applications in the fields of secure communications, radar, and random number generations. In this talk, the presenter demonstrate a novel method for the semiconductor laser-based wideband optical chaos generation with excellent randomness, in virtue of the optical spectrum expansion of self-chaotic-phase-modulation-modulated optical feedback and the phase-to-intensity conversion of nonlinear filtering. It is experimentally demonstrated that, with the proposed method, wideband chaos with flat spectrum can be easily obtained, and simultaneously, the time-delay signature that directly indicates the privacy of chaos source can also be totally suppressed, which means that the physical randomness of chaos is also significantly improved. This paper presents a novel way to generate wideband physical random chaos for the implement of high-speed secure chaotic communication, high-resolution and high-precision radar, and high-rate random bit generation.
Conference Presentation
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Ning Jiang, Anke Zhao, Yiqun Zhang, Jiafa Peng, Shiqin Liu, Kun Qiu, and Mingliang Deng "Wideband physical random optical chaos generation using semiconductor lasers", Proc. SPIE 11545, Semiconductor Lasers and Applications X, 1154505 (10 October 2020); https://doi.org/10.1117/12.2572976
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KEYWORDS
Chaos

Semiconductor lasers

Nonlinear filtering

Radar

Radio optics

Optoelectronics

Phase modulation

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