Wavelength-Multiplexed Polymer LEDs: Towards 55 Mb/s Organic Visible Light Communications

Haigh, Paul, Bausi, Francesco, Le Minh, Hoa, Papakonstantinou, Ioannis, Popoola, Wasiu Oyewole, Burton, Andrew and Cacialli, Franco (2015) Wavelength-Multiplexed Polymer LEDs: Towards 55 Mb/s Organic Visible Light Communications. IEEE Journal on Selected Areas in Communications, 33 (9). pp. 1819-1828. ISSN 0733-8716

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Abstract

We present recent progress on visible light communication systems using polymer light-emitting diodes as the transmitters and a commercial silicon photodetector as the receiver. In this paper, we use transmitters at red, green, and blue wavelengths to investigate the maximum on-off keying link performance of each device type as the first steps toward a wavelength-division multiplexed link. We show that a total transmission speed of 13 Mb/s is achievable when considering the raw bandwidth of each of the RGB PLEDs. Such a rate represents a 30% gain over previously demonstrated systems. Further capacity improvement can be achieved using high performance artificial neural network equalizer offering a realistic prospect for transmission speeds up to 54.9 Mb/s.

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