Visible Light Communication Using a Blue GaN µLED and Fluorescent Polymer Color Converter

Author

Hyunchae Chun ; Manousiadis, Pavlos ; Rajbhandari, Sujan ; Vithanage, Dimali A. ; Faulkner, Grahame ; Tsonev, Dobroslav ; McKendry, Jonathan J. D. ; Videv, Stefan ; Enyuan Xie ; Erdan Gu ; Dawson, Martin D. ; Haas, Harald ; Turnbull, Graham A. ; Samuel, I

Author_Institution

Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK

Volume

26

Issue

20

fYear

2014

fDate

Oct.15, 15 2014

Firstpage

2035

Lastpage

2038

Abstract

This letter presents a novel technique to achieve high-speed visible light communication (VLC) using white light generated by a blue GaN μLED and a yellow fluorescent copolymer. We generated white light suitable for room illumination by optimizing the ratio between the blue electroluminescence of the μLED and yellow photoluminescence of the copolymer color converter. Taking advantage of the components´ high bandwidth, we demonstrated 1.68 Gb/s at a distance of 3 cm (at 240 lx illumination). To the best of our knowledge, this is the fastest white light VLC results using a single blue LED/color converter combination.

Keywords

III-V semiconductors; electroluminescence; fluorescence; gallium compounds; light emitting diodes; optical communication; optical polymers; photoluminescence; polymer blends; wide band gap semiconductors; GaN; bit rate 1.68 Gbit/s; blue GaN μLED; blue electroluminescence; distance 3 cm; fluorescent copolymer color converter; room illumination; visible light communication; white light VLC; yellow photoluminescence; Bandwidth; Bit error rate; Gallium nitride; Light emitting diodes; Lighting; OFDM; Polymers; OFDM; VLC; colour converter; illumination; micro LED; organic semiconductors; super yellow;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2345256

Filename

6871350