Technology

Fixed wireless meets optical access in Nokia Wireless PON

There’s a new kid on the access block and it’s a form of fixed wireless called WiGig. Nokia has integrated the new wireless technology into its optical access equipment, to provide operators with another option for delivering gigabit services to the home.

Nokia says it’s the first to include WiGig technology with passive optical network (PON) equipment. Pilots, commercial trials and general product availability are planned for 2018, the company added.

Lightwave Logic champions polymer-based modulators

Electro-optic polymers could help other optical materials become more successful, according to Lightwave Logic, a development stage company.

Lightwave Logic has developed a high-performance Mach-Zehnder polymer modulator suitable for 50Gb/s modulation, the company announced at ECOC 2017 in Gothenburg Sweden. This breakthrough will enable arrays of 4 x 50G polymer modulators, which can be combined with PAM-4 encoding to build 400Gb/s data centre optics. 

CWDM8 MSA targets compact lower power optics for 400G

The CWDM8 multi-source agreement (MSA) Group has been formed to define optical specifications for 400G singlemode optics using 50G per wavelength and non-return-to-zero (NRZ) optical modulation.

The consortium aims to address what they see as a near-term need for lower power and more cost-effective options for distances of 2km and 10km within data centre and campus networks. This will support the deployment of 12.8Tb/s Ethernet switches and other advanced networking equipment with 50G electrical I/O.

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.

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.

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.

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.

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.

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