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Visible wavelength data communication is of interest for short distance chip-to-chip interconnects and free-space links such as Li-Fi, where modulated sources are incorporated in lighting systems. For the former, both high modulation bandwidth and low power consumption are critical. At Avicena, we have developed efficient high-speed light-emitting structures capable of multi-Gb/s NRZ modulation, which operate down to a few microamps of drive current. We have demonstrated a high speed and low energy optical communication links using these novel devices.
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Bardia Pezeshki, Robert Kalman, Alex Tselikov, Cameron Danesh, "High speed light microLEDs for visible wavelength communication," Proc. SPIE 11706, Light-Emitting Devices, Materials, and Applications XXV, 117060N (5 March 2021); https://doi.org/10.1117/12.2585000