High-speed real-time visible light communication system based on InGaN/GaN-base multi-quantum well blue micro-LED |
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| Authors: | YU Ji WEI Zhengjun GUAN Xiaojun ZHENG Yingfang ZHANG Xiangfei WANG Jindong WANG Shentao LIU Ningyang and XU Yiqin |
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| Affiliation: | Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China;School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China,Communication NCO Academy, Peoples Liberation Army Engineering University, Chongqing 400056, China,Guangdong Institute of Semiconductor Industrial Technology, Guangzhou 510006, China and Guangdong Institute of Semiconductor Industrial Technology, Guangzhou 510006, China |
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| Abstract: | Visible light communication (VLC) technology is a new type of wireless communication technology, which employs a light source as the carrier of information to realize illumination and communication simultaneously. This paper adopts a single InGaN/GaN-base multi-quantum well blue micro-light emitting diode (LED) as the light source, designs pre-emphasis circuit, LED driver circuit, impedance matching network, etc., and builds a high-speed real-time VLC system. It has been verified that the LED achieves a 3 dB modulation bandwidth of 450 MHz or more; and the real-time communication rate reaches over 800 Mbit/s at a distance of 2 m. The communication bit error rate (BER) is as low as at a communication rate of 622 Mbit/s. Experimental indicators including 3 dB bandwidth, communication rate, and communication BER are all taken into account. Therefore, this VLC system supports high-quality high-speed real-time communication. |
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