In information technology, multiplexing schemes are used to transmit more signals than the number of available transmission channels. Researchers at ETH in Zurich have invented a novel method whereby information is encoded in the correlated noise between spatially separated light waves. To send as much information as possible from A to B at the same…

Researchers at ETH Zurich have developed a modulator with which data transmitted via millimetre waves can be directly converted into light pulses for optical fibres. This could make covering the “last mile” up to the internet socket at home considerably faster and cheaper. The high oscillation frequencies of light waves make them ideally suited to fast data…