GU Jiamei,WEI Zhengjun,YU Jia,WANG Guifa,TANG Min,WANG Jindong,WANG Shentao.Wide illumination and communication angle visible light communication system based on low output impedance LED driver amplifier[J].Optoelectronics Letters,2021,17(9):523-528 Wide illumination and communication angle visible light communication system based on low output impedance LED driver amplifier Author Name Affiliation GU Jiamei  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  WEI Zhengjun  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  YU Jia  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  WANG Guifa  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  TANG Min  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  WANG Jindong  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  WANG Shentao  Communication NCO Academy, Peoples Liberation Army Engineering University, Chongqing 400056, China  Abstract:       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. A 125 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. Hits: 665 Download times: 67 View Full Text    Download reader