7.4-Gbit/s Visible-Light Communication Utilizing Wavelength-Selective Semipolar Micro-Photodetector
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Omar Alkhazragi et al. Semipolar PD VLC.pdf
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ArticleAuthors
Alkhazragi, Omar
Kang, Chun Hong

Kong, Meiwei

Liu, Guangyu

Lee, Changmin

Li, Kuang-Hui

Zhang, Huafan

Wagstaff, Jonathan M.
Alhawaj, Fatimah
Ng, Tien Khee

Speck, James S.
Nakamura, Shuji
DenBaars, Steven P.
Ooi, Boon S.

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering
Electrical Engineering Program
Material Science and Engineering
Material Science and Engineering Program
Photonics Laboratory
Physical Science and Engineering (PSE) Division
Date
2020Permanent link to this record
http://hdl.handle.net/10754/662847
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Show full item recordAbstract
Visible light communication (VLC) has drawn significant attention in recent years. Though high-speed visiblelight sources have seen significant advances, commercially available photodetectors have low wavelength selectivity and modulation bandwidth in the near-violet-blue wavelengths, making them a bottleneck in VLC links. Here we show a record 7.4-Gbit/s visible-light communication link using a wavelengthselective, (2021)-oriented, semipolar InGaN/GaN multiplequantum- well micro-photodetector (μPD) on a GaN substrate. This is achieved by leveraging on the unique photodetection properties of semipolar μPDs, combined with an optimized communication system utilizing bit- and power-loading schemes in orthogonal frequency-division multiplexing (OFDM) modulation over a 2-GHz bandwidth. We used a 405-nm violet laser diode transmitter as the responsivity of the μPD was highest within the responsivity range from 360 to 420 nm. The investigation fully demonstrated the feasibility and favorable choice of semipolar InGaN/GaN μPDs for multi-Gbit/s optical wireless communication.Citation
Alkhazragi, Om., Kang, C. H., Kong, M., Liu, G., Lee, C., Li, K.-H., … Ooi, B. S. (2020). 7.4-Gbit/s Visible-Light Communication Utilizing Wavelength-Selective Semipolar Micro-Photodetector. IEEE Photonics Technology Letters, 1–1. doi:10.1109/lpt.2020.2995110Publisher
IEEEAdditional Links
https://ieeexplore.ieee.org/document/9094211/https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9094211
ae974a485f413a2113503eed53cd6c53
10.1109/LPT.2020.2995110
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