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UV-B comms system transmits 71Mbit/s

Researchers at the King Abdullah University of Science and Technology have demonstrated data transfer using UV-B light.

The team used an LED to send pulsed UV-B signals to a sensor comprising two antireflective lenses that focused UV-B light onto a photodetector.

The team observed strong power transmission, even when the angle between source and detector was increased up to 12°, demonstrating that direct line-of-sight was not required. The system transmitted data at 71Mbit/s.

“Other groups have used different types of UV sources for transmitting relatively slow non line of sight signals for communications,” said Professor Boon Ooi. “We are the first to achieve multiple tens of Mbit/s transmission using UV-B LEDs.”

Graham Pitcher

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