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.
As data demand ramps ever higher, researchers are looking to innovative amplifier designs to help transport a broader light spectrum through optical fibres, finds Andy Extance
Duncan Ellis shares his views about the increased focus on automation from network operators, and how the physical layer has so far stubbornly resisted the move
Switching off copper networks where fibre has been deployed is the end game, so why are so few operators doing it, wonders Pauline Rigby
With demand for fibre to the premises increasing, Keely Portway looks at the role training plays in ensuring installation skills remain available to meet this growing demand