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6 November 2018 Dual-channel physical random bits generation using a vertical-cavity surface-emitting laser under dual-path polarization-preserved chaotic optical injection
Can Ran, Xi Tang, Zheng-Mao Wu, Guang-Qiong Xia
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Proceedings Volume 10812, Semiconductor Lasers and Applications VIII; 108120Z (2018) https://doi.org/10.1117/12.2502245
Event: SPIE/COS Photonics Asia, 2018, Beijing, China
Abstract
We propose a scheme for acquiring dual-channel physical random bits based on a vertical-cavity surface-emitting laser (VCSEL) under dual-path polarization-preserved chaotic optical injection (DP-PPOI). The injection chaotic light is generated by a master VCSEL (M-VCSEL), which is subjected to polarization-preserved optical feedback from a fiber Bragg grating (FBG). Under suitable operation parameters, the outputs of X polarization component (X-PC) and Y polarization component (Y-PC) in the M-VCSEL are chaotic signals with weak time-delay signatures (TDS), which are injected into another VCSEL (named as the slave VCSEL, S-VCSEL) via DP-PPOI. Through selecting the injection parameters, the X-PC and Y-PC in the S-VCSEL can simultaneously output chaotic signals with wide bandwidth and suppressed TDS, which are used as entropy sources for generating dual-channel random bits. The results demonstrate that the rates of generated dual-channel random bits can be up to 500 Gbits/s.
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Can Ran, Xi Tang, Zheng-Mao Wu, and Guang-Qiong Xia "Dual-channel physical random bits generation using a vertical-cavity surface-emitting laser under dual-path polarization-preserved chaotic optical injection", Proc. SPIE 10812, Semiconductor Lasers and Applications VIII, 108120Z (6 November 2018); https://doi.org/10.1117/12.2502245
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KEYWORDS
Vertical cavity surface emitting lasers
Fiber Bragg gratings
Polarization
Semiconductor lasers
Signal generators
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