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.
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This work has been supported by the Science of Technology Program of Guangdong Province (No.2015B010112002), and the Science Technology Program of Guangzhou (No.201804010166).
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Gu, J., Wei, Z., Yu, J. et al. Wide illumination and communication angle visible light communication system based on low output impedance LED driver amplifier. Optoelectron. Lett. 17, 523–528 (2021). https://doi.org/10.1007/s11801-021-0153-z
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DOI: https://doi.org/10.1007/s11801-021-0153-z