Abstract. A new method to achieve high speed visible light communication (VLC) using white light generated by a blue GaN µLED and a yellow fluorescent copolymer is presented. We generated white light suitable for indoor lighting by optimizing the ratio between the blue EL of a µLED and the yellow photoluminescence of a copolymer color converter. Taking advantage of the high bandwidth of the components, we achieved 1.68Gbps at 3cm (at 240 lux). To the best of our knowledge, these are the fastest white light VLC results using a single blue LED and color converter combination.

Keywords: VLC, Li-Fi, intensity, modulatin, dimming, PWM, optical OFDM with reverse polarity.