Institute of semiconductors, Chinese Academy of Sciences, integrated optoelectronics State Key Laboratory of vertical cavity surface emitting lasers researcher, Hong Chen project team of researchers from the beginning of 2008 to engage in visible light communication technology research, has presided over the visible light communication knowledge innovation project of Chinese Academy of Science an important direction for the project, National Science and technology supporting plan special Expo, involved in the visible light communication research 973 and 863 scientific research task. Chen Xiongbin hosted by the Beijing Municipal Science and technology planning project, the indoor high speed visible light communication system and the handover technology research and development (January 2014 to December 2015) has been completed according to plan. The team commissioned by the Ministry of industry of China Theil Laboratory of single channel real time 610Mbps visible communication the third party testing, results are as follows:
Based on 1 watt fluorescent type white LED, pin detector ook modulation in single channel real-time transmission average rate 610Mbps, in 6.2 meters transmission distance, average bit error rate is on the order of 3.5e-5, far lower than before to the correction of the error rate limit 3.8e-3.
The results of the research are as follows:
1. A 550 Mbit / s real-time visible light communication system based on Phosphorescent white light LED for practical analysis low-complexity. Honglei Li, Xiongbin Chen*, Junqing Guo, Hongda. Optics Express: October 27, 2014. Vol.22, No.22
2. An analog MODULATOR for 460 MB/S visible light data transmission based on OOK-NRZ MODULATION. HONGLEI Li, XIONGBIN CHEN*, JUNQING Guo, ZONGYU Gao, and HONGDA Chen. Wireless Communications: April 2015, Volume:22. Issue: 2, 68-73
Based on the research of visible light communication technology based on high speed real-time transmission, the research team has set up the following demonstration system of visible light communication:
1 bidirectional symmetrical 100Mbps lighting system based on 1 watt fluorescent white LED and PIN detectors.
1 based on the 2 Watt Blu ray LED and PIN detectors of the two-way symmetrical 10Mbps densely populated area lighting system.
3 mobile phone visible light communication system and multimedia broadcasting system based on fluorescent white LED and PIN detector.
Hong Chen believes that the visible light communication of the wireless optical communication technology than the traditional radio communication technology more in line with the direction of development of wireless communication technology of the high speed and large capacity, security), the future will be the birth of many innovative applications. Chinese there are many LED enterprises and broad semiconductor lighting market, this advantage is the foundation of other countries is difficult to match. We should pay attention to the practical research of the visible light communication technology. The team's specific research progress and results in kind photos please visit Chen Xiongbin's personal research home page: http://www.escience.cn/people/jason