Technology

Sumitomo designs 8-core fibre for compact optical cables

Sumitomo Electric Industries has developed an optical fibre with eight cores inside a standard 125μm-diameter cladding, which has allowed the company to manufacture fibre-optic cable based on the new fibre. The resulting 3mm cable has the highest core density ever reported, the company claims.

The results were presented at the postdeadline paper (Th5C.6) at OFC 2015 on 26 March 2015 in Los Angeles, California.

Tiny silicon photonic switches go large

Researchers at the University of California, Berkeley have developed a novel silicon photonic switch, which has the largest scale and the lowest optical losses reported to date for such a highly integrated device. Their research is considered one of the top-rated papers at OFC 2015.

Coriant targets metro edge with 7100 Pico platform

Coriant has unveiled the 7100 Pico, a compact packet-optical transport platform optimised for service enablement at the edge of metro networks.

The 7100 Pico extends the reach of the existing Coriant 7100 product family that it acquired from Tellabs, which also includes the 7100 Optical Transport System (OTS) and 7100 Nano.

EU project to develop ‘smart thermal’ photonic devices

An EU-funded project plans to develop intelligent circuits that will allow photonic devices to regulate their own temperature, making them up to five times more efficient.

The three-year Thermally Integrated Smart Photonics Systems (TIPS) project, led by the Tyndall National Institute in Ireland, has secured €5.2 million in funding under Horizon 2020’s call for Smart Integration Systems.

Ciena debuts chips, architecture for a web-scale world

Ciena has released a broad array of new products to address the requirements of what it calls the ‘web-scale world’. These include a pair of new coherent chipsets, a new metro network architecture and service delivery switches for small cell mobile backhaul.

The new products are designed to deliver expansive bandwidth, operational efficiency and network agility – characteristics needed in networks dominated by applications such as cloud computing, network virtualisation and openness, according to Ciena.

Super-receiver unscrambles super-channel data

Researchers at University College London (UCL) have developed a new way to process coherent optical signals, which could double the distance that data can travel error-free through fibre-optic cables. Their work was published in the journal Scientific Reports.

Effect Photonics banks optical integration expertise

Developments that could lead to a significant reduction in the cost of photonic integrated circuits lie behind the announcement of a series-A funding round for Dutch start-up Effect Photonics.

The first close of the investment round – there is likely to be a second close soon - was led by Swiss investors b-to-v Partners, and included the Brabant Development Agency (BOM) and Optidob from the Netherlands. The amount was not disclosed.

Alcatel-Lucent reduces cost barriers to TWDM-PON

Thanks to a bit of lateral thinking, Alcatel-Lucent has come up with a way to lower the initial cost of deploying TWDM-PON, which should make it easier for operators to consider adopting the latest in fixed-line broadband technology.

Time- and wavelength-division multiplexed PON is the approach chosen for the next generation of passive optical networks. Announced in October 2014, Alcatel-Lucent’s TWDM-PON system was the first on the market. It delivers 40Gb/s of capacity via four 10Gb/s transmitters, each on a different wavelength.

Verizon extends 100G network in Asia-Pacific

Verizon has deployed 100G coherent optical transmission technology in three more countries in the Asia-Pacific region: Japan, Singapore and Hong Kong.

This deployment, which was based on the Fujitsu Flashwave 9500 ROADM and Ciena 5430 reconfigurable switching system, adds approximately 11,681 terrestrial and submarine miles (18,800km) to the company's extensive 100G network in the US and Europe. Verizon has deployed more than 32,000 100G miles already deployed on its US network and 8,500 100G miles in Europe.

AFL adds four patents to its portfolio

AFL has been awarded four patents, including three new ones. They cover technologies used in AFL’s optical connectivity products, fibre-optic cables and test and inspection equipment. 

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