摘要
The visible light communication(VLC)system employs large viewing divergence angle light-emitting diode(LED)to realize illumination and communication simultaneously,so the geometric loss of optical power may reach tens of decibels,moreover,considering the gain reduction of the LED at high frequency,signal power at the receiver will be too weak.To overcome these drawbacks,in this paper,a low output impedance power driver amplifier is presented to provide enough power to drive a medium power commercial LED used at the end of the optical transmitter.A125 Mbit/s real-time communication with illumination and communication angle of 130°has been achieved at a distance of 3 m,the bit error rate(BER)is 3.13×10-11 at a divergence angle of LED of 0°and 1.21×10-6 at a communication angle of 130°.Experimental results indicated that this VLC system can be used for illumination and communication simultaneously.
作者
GU Jiamei
WEI Zhengjun
YU Jia
WANG Guifa
TANG Min
WANG Jindong
WANG Shentao
顾佳美;魏正军;余佳;王桂发;唐敏;王金东;王申涛(Guangdong Provincial 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)
基金
supported by the Science of Technology Program of Guangdong Province(No.2015B010112002)
the Science Technology Program of Guangzhou(No.201804010166)。
