Optical wireless LANs


Wireless data from every light

Visible and near-infrared light represents a readily available and very large source of wireless spectrum beyond the traditional radio spectrum. Enter LiFi, a technology promising speeds in excess of 100Gb/s delivered via solid-state lighting, such as light-emitting diodes (LEDs). This enables high-bandwidth data signals to be transmitted without wires, while not being subjected to or contributing to electromagnetic interference (EMI) below 3THz. The technology also has great potential in applications where security is a concern.


To continue growing data traffic, optical scientists are tackling tough questions about nonlinear effects in optical fibre, discovers Andy Extance