Applications

NEWS

4,000km fibre-optical transmission link demonstrated using ultra-low-noise optical amplifiers

Researchers from Chalmers University of Technology, Sweden, and Tallinn University of Technology, Estonia, have demonstrated a 4,000km fibre-optical transmission link using ultra low-noise, phase-sensitive optical amplifiers. The reach improvement shown is 5.6 times that which is possible when using conventional erbium-doped fibre amplifiers. ​

NEWS

Vodafone Spain completes live trial using TIP’s Voyager ‘white box’ platform

Vodafone has successfully completed a live network trial in Spain as part of its work with the Telecom Infra Project (TIP), using the Voyager optical ‘white box.’

The goal of the live trial was to showcase the future of applying a disaggregated model to optical networks and to provide more flexibility to handle the real time dynamics using Voyager, combined with a software-defined network (SDN) controller.

NEWS

CableLabs specifications bring higher speeds to access networks

CableLabs has published two new specifications to ‘dramatically increase’ capacity of the fibre access network with point-to-point coherent optics technology, allowing for 100Gb/s per wavelength.

Using amplitude, phase, and polarisation to enable much higher fibre capacities, coherent optics can help to improve streaming, video conferencing, file uploads and downloads and future usage needs for technologies such as virtual and augmented reality, and by gaining more capacity from existing fibres, the need to lay more can be eliminated.

NEWS

NPL research demonstrates how submarine fibre cables could be used to detect earthquakes

The undersea cables used for communications could be used to detect underwater earthquakes according to scientists at the National Physical Laboratory (NPL) and Istituto Nazionale di Ricerca Metrologica (INRiM, Italy), who have developed a new method of using the cables as ‘acoustic sensors.’

Pages

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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

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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

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Switching off copper networks where fibre has been deployed is the end game, so why are so few operators doing it, wonders Pauline Rigby

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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

Analysis and opinion