Technology

NEWS

100G Lambda MSA focuses on serial 100G optical links

The desire for faster data centre optics appears to be outpacing the standards process. As a result, 22 companies have joined forces to speed up the development of 100Gb/s serial optical interfaces.

The 100G Lambda multi-source agreement (MSA) group is developing specifications for optical interfaces based on 100Gb/s per wavelength over duplex singlemode fibre. These new optical specifications are targeting 100 and 400 Gigabit Ethernet applications in the next-generation of networking equipment.

NEWS

US Navy experiments with free-space optics system for ships

Johns Hopkins University reports that a team of engineers from the Applied Physics Laboratory (APL) has successfully demonstrated a high-bandwidth, free-space optical (FSO) communications system between two moving ships, proving that FSO technology can operate in maritime conditions. The Lab demonstrated its latest compact form factor system during the 2017 Trident Warrior Exercise, an annual event where sailors try out the latest innovations in naval warfare systems.

NEWS

Japanese team tops 100 terabits over an optical fibre

Nippon Telegraph and Telephone (NTT) and six partners have established a new world record of 118.5Tb/s for the largest transmission capacity achieved over an optical fibre of standard dimensions.

Though the optical fibre had the same diameter as standard singlemode fibre, its structure was not standard. The design contained four cores (light paths) running along the fibre’s length.

NEWS

CST Global leads £1.1M project to slash cost of FTTP lasers

Semiconductor foundry CST Global is leading a UK government-funded project that could substantially reduce the cost of manufacturing high-speed laser diodes for next-generation fibre-to-the-premises (FTTP) networks.

The market for passive optical networks (PON) is expanding rapidly as consumers upgrade their broadband connections to higher speeds. Indeed, this summer, CST Global said it had shipped more than 25 million lasers into PON markets worldwide. To meet the insatiable demand for bandwidth, the next generation of PON lasers will need to be both higher speed and lower cost.

NEWS

Rockley Photonics teams up with Southampton University on silicon photonics

Rockley Photonics, a silicon photonics start-up founded by entrepreneur Andrew Rickman, has formed a partnership with the Optoelectronics Research Centre (ORC) at the UK’s University of Southampton to develop integrated photonics technology for mass market applications.

Through the ‘Prosperity Partnership’, Rockley Photonics will match the ORC’s government funding over the next five years. The scheme is designed to strengthen ties between university and industry, and speed up the time it takes innovation to progress from concept to market place.

NEWS

Calix demos NG-PON2 channel bonding for Verizon

Calix announced that it is the first vendor to demonstrate ITU standards-based channel bonding for NG-PON2, which combines multiple 10Gb/s channels to create a single channel with throughput of up to 40Gb/s.

Channel bonding allows operators to deliver more bandwidth than a single channel can support. This technique is used to boost capacity in DSL and G.fast systems by combining the capacity from several copper cables into a single logical channel. In the case of NG-PON2, the channels are wavelengths running over the same physical fibre.

NEWS

Coriant conducts disaggregation field trial with Telefonica Germany

Coriant reports the successful completion of a trial to show disaggregated 100G, 150G, and 200G optical transmission over live fibre-optic links in Telefónica Germany’s existing 10G DWDM network.

Conducted earlier this year, the trial showed how an open transmission systems and disaggregated networking technology – in this case using Coriant’s Groove G30 platform – can be used to increase network capacity more than 10-fold, avoiding the need to invest in new fibre.

NEWS

Infinera trials Infinite Capacity Engine over Canalink cable

Infinera has carried out a successful submarine network field test of its Infinite Capacity Engine (ICE) with Canalink, a wholly-owned subsidiary of the ITER group. Canalink owns a system of undersea fibre-optic cables linking the Canary Islands with the Iberian Peninsula and the western coast of Africa.

The test, which was conducted on Canalink’s 1,393km cable linking the Conil landing point on the Spanish mainland with Tenerife in the Canary Islands, showed that it would be possible to upgrade the subsea cable well beyond its original design capacity.

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Oleg Khaykin, CEO of Viavi Solutions, speaks candidly to Fibre Systems about how to compete in the challenging world of communications test and measurement

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Hao Dong describes how innovative optical fibres and cabling could provide substantial benefits for connecting data centres across a wide range of distances

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Collaborative initiatives are seeking to bridge the gap between small- and large-scale production of photonic integrated circuits, finds Andy Extance

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Optical networks are playing an increasingly important role in the distribution of precise timing signals and synchronisation with sub-microsecond accuracy. Michael Ritter explains