Transmitting Data Faster with LEDs

Oct-30-13 A new technology able to transmit data at 10 gigabits per second via the flickering light of an LED could eventually replace today’s routers.

The technology was developed as part of the ultra-parallel visible light communications project, which seeks to use specialized LED bulbs to provide low-cost, wireless internet alternatives. The team increased the data-carrying capacity of the system by developing tiny, micro-LED bulbs able to transmit the data on three different wavelengths of light (blue, red and green), with each wavelength carrying 3.5 gigabits a second. The bulbs allow the stream of light to be beamed in parallel, multiplying the amount of data that could be transmitted at one time.

Data delivered by LiFi is transmitted by the flicker of the lights, which switch off and on too quickly for the human eye to perceive. The micro red, blue and green LEDs are also by humans as white light.

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