Title :
100-Mb/s NRZ Visible Light Communications Using a Postequalized White LED
Author :
Le Minh, Hoa ; O´Brien, Dominic ; Faulkner, Grahame ; Zeng, Lubin ; Lee, Kyungwoo ; Jung, Daekwang ; Oh, Yunje ; Won, Eun Tae
Author_Institution :
Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK
Abstract :
This letter describes a high-speed visible light communications link that uses a white-light light-emitting diode (LED). Such devices have bandwidths of few megahertz, severely limiting the data rates of any communication system. Here, we demonstrate that by detecting only the blue component of the LED, and using a simple first-order analogue equalizer, a data rate of 100 Mb/s can be achieved using on-off keying nonreturn-to-zero modulation.
Keywords :
amplitude shift keying; equalisers; light emitting diodes; optical fibre communication; optical filters; optical modulation; NRZ visible light communication link; bit rate 100 Mbit/s; blue-filter; first-order analogue equalizer; nonreturn-to-zero modulation; on-off keying; postequalized white LED; white-light light-emitting diode; Blue-filter; equalization; light-emitting diode (LED); modulation bandwidth;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2022413
