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Proceedings Paper

Synchronized random bit-generation based on vertical-cavity surface-emitting lasers with optical injection and polarization-rotated feedback
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Paper Abstract

Based on vertical-cavity surface-emitting lasers (VCSELs) with optical injection and polarization-rotated optical feedback, we propose and numerically demonstrate a scheme for generating synchronized random bit sequences (SRBS) for two legal users at different locations. For the scheme, the chaotic signal generated by a driving VCSEL (D-VCSEL) subject to chaotic optical injection are utilized to simultaneously drive two VCSELs (A-VCSEL and B-VCSEL) with polarization-rotated feedback, then the chaotic outputs from A (B)-VCSEL are used as physical entropy sources to generate SRBS. The simulated results show that, the SRBS at a rate up to 400 Gbits/s can be achieved after adopting suitable post-processing method. The security of this scheme can be ensured by a high-quality synchronization between A-VCSEL and B-VCSEL while relatively low-quality synchronization between D-VCSEL and A (B)-VCSEL. Moreover, the BER and the randomness of generated SRBS are also discussed.

Paper Details

Date Published: 19 November 2019
PDF: 8 pages
Proc. SPIE 11182, Semiconductor Lasers and Applications IX, 111820U (19 November 2019); doi: 10.1117/12.2537286
Show Author Affiliations
Xue-Han Wang, Southwest Univ. (China)
Tao Deng, Southwest Univ. (China)
Wen-Long Huang, China Telecom Corp., Ltd. Shaoxing Branch (China)
Guang-Qiong Xia, Southwest Univ. (China)
Xi Tang, Southwest Univ. (China)
Zheng-Mao Wu, Southwest Univ. (China)


Published in SPIE Proceedings Vol. 11182:
Semiconductor Lasers and Applications IX
Ning Hua Zhu; Werner H. Hofmann; Jian-Jun He, Editor(s)

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