6 October 2017 15 Gb/s OFDM-based VLC using direct modulation of 450 GaN laser diode
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Abstract
A record data rate for visible light communications (VLC) using a transistor outline (TO) packaged Gallium Nitride (GaN) laser diode is reported. Using a system 3 dB bandwidth of 1.4 GHz data transmission at 15 Gb/s is reported. This is achieved due to the use of orthogonal frequency division multiplexing (OFDM) in combination with a high system signal to noise ratio (SNR) and adaptive bit loading extending the effective bandwidth to 2.5 GHz. To the best of authors knowledge this is the highest reported data rate for single channel VLC.
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Shaun Viola, Mohamed Sufyan Islim, Scott Watson, Stefan Videv, Harald Haas, Anthony E. Kelly, "15 Gb/s OFDM-based VLC using direct modulation of 450 GaN laser diode", Proc. SPIE 10437, Advanced Free-Space Optical Communication Techniques and Applications III, 104370E (6 October 2017); doi: 10.1117/12.2292004; https://doi.org/10.1117/12.2292004
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