Multi-Channel Physical Random Bits Generation Using a Vertical-Cavity Surface-Emitting Laser Under Chaotic Optical Injection | Zendy

Xi Tang | Zendy; Guang-Qiong Xia | Zendy; Elumalai Jayaprasath | Zendy; Tao Deng | Zendy; Xiao-Dong Lin | Zendy; Li Fan | Zendy; Zi-Ye Gao | Zendy; Zheng-Mao Wu | Zendy

Open Access

Multi-Channel Physical Random Bits Generation Using a Vertical-Cavity Surface-Emitting Laser Under Chaotic Optical Injection

Author(s) -

Xi Tang,

Guang-Qiong Xia,

Elumalai Jayaprasath,

Tao Deng,

Xiao-Dong Lin,

Li Fan,

Zi-Ye Gao,

Zheng-Mao Wu

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2800095

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

We experimentally demonstrate multi-channel physical random bits (PRBs) generation by utilizing chaotic outputs from two linear polarization modes in a vertical-cavity surface-emitting laser (VCSEL) under a chaotic optical injection. The polarization-resolved chaotic signal is obtained with a master-VCSEL subject to optical feedback, and then injects into a slave-VCSEL for driving its two linear polarization modes into chaotic state. We analyze the influences of injection parameters on bandwidth, complexity, and the correlation of two-channel chaotic signals. By using the two chaotic signal outputs from the slave-VCSEL under optimized parameters as entropy sources, we have obtained the PRBs at the dual-channel rate of 160 Gbits/s by adopting the m least significant bits extraction with logical exclusive-OR (XOR) post-processing. Further utilizing the n-bit cross-merging method, the PRB at a rate of 320 Gbits/s could be obtained.

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