Title :
A 1-Mb/s Visible Light Communications Link With Low Bandwidth Organic Components
Author :
Haigh, Paul Anthony ; Ghassemlooy, Zabih ; Papakonstantinou, Ioannis ; Arca, Francesco ; Tedde, Sandro F. ; Hayden, Oliver ; Leitgeb, Erich
Author_Institution :
Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne, UK
Abstract :
This letter presents new experimental results on a 1-Mb/s organic visible light communications system. These results are the first demonstration of a fully organic free space optical communications system. Due to low charge transport characteristics, organic devices are typically highly band limited in the hundreds of kilohertz region (up to 135 kHz in this letter). Therefore, an artificial neural network (ANN) equalizer is required to undo the effects of intersymbol interference. Without the ANN, the maximum link performance corresponds to a data rate of 350 kb/s; however, with the ANN, a transmission speed of 1.15 Mb/s could be supported.
Keywords :
intersymbol interference; optical communication equipment; optical links; optical neural nets; organic light emitting diodes; photodetectors; ANN; artificial neural network equalizer; bit rate 1 Mbit/s; bit rate 350 kbit/s; byte rate 1.15 MByte/s; data rate; frequency 135 kHz; fully organic free space optical communications system; intersymbol interference; low bandwidth organic components; low charge transport characteristics; maximum link performance; organic devices; organic visible light communication system; transmission speed; visible light communication link; Artificial neural networks; Bandwidth; Bit error rate; Equalizers; Organic light emitting diodes; Photodetectors; Q-factor; Bit error rate; equalizers; organic light emitting diodes; organic photodetectors; visible light communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2321412
