Visible light communication system at 3.59 Gbit/s based on c-plane green micro-LED

Visible light communication(VLC) based on the micro light emitting diode (micro-LED) has attracted increasing attention owing to its high bandwidth, low power consumption, and high security. Compared with semi-polar or non-polar micro-LEDs,the commercial polar micro-LED has the advantages of low cost and more mature epitaxy technique. In this study, green micro-LEDs with different indium tin oxide(ITO) sizes are fabricated based on the commercial c-plane LED epitaxial wafer.The transmission performance of 80, 100, and 150 μm devices has been studied in detail. A partial pre-equalization scheme is utilized to increase data rates. Finally, the VLC system with a 100 μm green micro-LED as the transmitter could achieve a maximum data rate of 3.59 Gbit/s. Such a result will be beneficial to promote the further development of low-cost,high-speed VLC devices in the future.