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Over 10 Gbps VLC for Long-Distance Applications Using a GaN-Based Series-Biased Micro-LED Array

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Original languageEnglish
Article number10.1109/LPT.2020.2981827
Pages (from-to)499-502
Number of pages4
JournalIEEE Photonics Technology Letters
Publication statusPublished - 18 Mar 2020


By employing a GaN-based series-biased micro-light emitting diode ( $\mu $ LED) array and orthogonal frequency division multiplexing modulation format, a high-speed free-space visible light communication system for long-distance applications has been demonstrated. The blue series-biased $\mu $ LED array, which consists of $3\times 3$ , 20 $\mu \text{m}$ -diameter $\mu $ LED elements, presents promising performance with an optical power and −6dB electrical modulation bandwidth of over 10 mW and 980 MHz, respectively. Record data transmission rates have been successfully achieved at different free-space distances. Within 5 m transmission distances, over 10 Gbps data rates at the forward error correction (FEC) floor of $3.8\times 10^{-3}$ are accomplished. Extending the transmission distances to 20 m, the data rates are maintained at the Gbps level at the FEC floor.

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