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Entries in BT (14)

Friday
Jul282017

A quantum leap in fear

The advent of quantum computing poses a threat which could break open the security systems protecting the world’s financial data and transactions. 

Professor Michele Mosca

Protecting financial data has always been a cat-and-mouse game. What is different now is that the cat could be de-clawed. Quantum computing, a new form of computer processing, promises to break open the security systems that safeguard much of the world’s financial data and transactions.

Quantum computing is expected to be much more powerful than anything currently available because it does not rely on the binary digits 1 or 0 to represent data but exploits the fact that subatomic particles can exist in more than one state at once.

Experts cannot say with certainty when a fully-fledged quantum computer will exist but, once it does, public key encryption schemes in use today will be breakable. Quantum computer algorithms that can crack such schemes have already been put through their paces.

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Friday
May052017

BT bolsters research in quantum technologies

BT is increasing its investment in quantum technologies. “We have a whole team of people doing quantum and it is growing really fast,” says Andrew Lord, head of optical communications at BT.

The UK incumbent is working with companies such as Huawei, ADVA Optical Networking and ID Quantique on quantum cryptography, used for secure point-to-point communications. And in February, BT joined the Telecom Infra Project (TIP), and will work with Facebook and other TIP members at BT Labs in Adastral Park and at London’s Tech City. Quantum computing is one early project.

Andrew LordThe topics of quantum computing and data security are linked. The advent of quantum computers promises the break the encryption schemes securing data today, while developments in quantum cryptography coupled with advances in mathematics promise new schemes resilient to the quantum computer threat.

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Monday
Dec052016

Books of the year 2016 - Part 1

Each year Gazettabyte asks industry figures to comment on books that they recommend. Here are BT's Andrew Lord's and Cignal's Andrew Schmitt's recommendations to kick off this year's reviews.

 

Andrew Lord, Head of Optical Research at BT.

Quantum technologies are flavour of the month, with huge government investments from around the world. The title and cover of Bananaworld: Quantum Mechanics for Primates by Jeffrey Bub, suggest a book that will ‘unpeel’ a tough but increasingly important subject for general readers. 

The book itself is, however, far deeper than its cover suggests, going way beyond the basics, and attempting to forge a link between quantum mechanics and the structure of information. 

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Tuesday
Jan192016

BT makes plans for continued traffic growth in its core 

Briefing: DWDM developments

Part 1

Kevin Smith: “A lot of the work we are doing with the trials have demonstrated we can scale our networks gracefully rather than there being a brick wall of a problem.”

BT is confident that its core network will accommodate the expected IP traffic growth over the next decade. Traffic in BT’s core is growing at between 35 and 40 percent annually, compared to the global average growth rate of 20 to 30 percent. BT attributes its higher growth to the rollout of fibre-based broadband across the UK.

The telco is deploying 100-gigabit wavelengths in high-traffic areas of its network. “These are key sites where we're running out of wavelengths such that we need to implement higher-speed ones,” says Kevin Smith, research leader for BT’s transport networks. The operator is now trialling 200-gigabit wavelengths using polarisation multiplexing, 16-quadrature amplitude modulation (PM-16QAM).

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Thursday
Oct222015

Sckipio improves G.fast’s speed, reach and density  

Sckipio is using this week’s Broadband World Forum event in London to highlight its latest G.fast activities 

Sckipio has enhanced the performance of its G.fast chipset, demonstrating 1 gigabit data rates over 300 meter of telephone wire. The G.fast broadband standard has been specified for 100 meters only. The Israeli start-up has also demonstrated 2 gigabit performance by bonding two telephone wires.

 

Michael Weissman

“Understand that G.fast is still immature,” says Michael Weissman, co-founder and vice president of marketing at Sckipio. “We have improved the performance of G.fast by 40 percent this summer because we haven’t had time to do the optimisation until now.”

The company also announced a 32-port distribution point unit (DPU), the aggregation unit that is fed via fibre and delivers G.fast to residences. 

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Friday
Apr052013

Software-defined networking: A network game-changer?

Q&A with Andrew Lord, head of optical research at BT, about his impressions following the recent OFC/NFOEC show.

OFC/NFOEC reflections: Part 1


"We [operators] need to move faster"

Andrew Lord, BT

 

 

 

 

 

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Sunday
Dec022012

NeoPhotonics' PIC transceiver tackles PON business case

Gazettabyte completes its summary of optical announcements at ECOC, held in Amsterdam. In the third and final part, NeoPhotonics GPON multiport transceiver is detailed.

Part 3: NeoPhotonics


“Anything that can be done to get high utilisation of your equipment, which represents your up-front investment, helps the business case"

 

Chris Pfistner, NeoPhotonics  

 

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