Feeds

Submarine cable capacity doubled with flick of switch

NTT's Japan-US link now at 8.4 Tbps as Alca-Lu demos 31 Tbps link

Choosing a cloud hosting partner with confidence

With a flick of a switch, NTT has boosted the capacity on its Japan-US PC-1 cable link more than 2.5 times to 8.4 terabits per second.

The company's announcement heralds the beginning of a rollout that will ultimately take in NTT's intra-Asian submarine cables. NTT has been trialling 100 Gbps digital coherent optical systems from Infinera since 2011, but says only now has it resolved all the technical challenges in achieving stable channels.

“By optically optimising the PC-1’s network architecture, including with strategically placed optical repeaters and an enhanced optical fibre layout, NTT Com has now achieved the world’s first commercial deployment of 100 Gbps digital coherent technology on a transpacific route,” NTT said in an announcement.

Now that the transpacific system is live, NTT says it will begin implementing the systems on its Asia Submarine-cable Express system, which links Japan, the Philippines, Hong Kong, Malaysia and Singapore.

Construction of the ASE cable was completed by Fujitsu and NEC in February 2013.

In the meantime, Alcatel-Lucent is touting capacities far beyond those now being implemented by NTT, successfully demonstrating a 31 Tbps, 7,200 km link, with a repeater spacing of 100 km, in its Villarceaux laboratory near Paris.

Alca-Lu says the 31 Tbps demonstration offers triple the capacity of current advanced submarine cables. To achieve the high data rates, the company ran a DWDM scheme with 155 individual lasers and a channel spacing of 50 GHz, with individual transmissions operating at 200 Gbps.

The experiment was detailed in a post-deadline paper presented at the OECC (Opto-Electronic Communication Conference) earlier this month. ®

Security for virtualized datacentres

More from The Register

next story
It's Big, it's Blue... it's simply FABLESS! IBM's chip-free future
Or why the reversal of globalisation ain't gonna 'appen
'Hmm, why CAN'T I run a water pipe through that rack of media servers?'
Leaving Las Vegas for Armenia kludging and Dubai dune bashing
Bitcasa bins $10-a-month Infinite storage offer
Firm cites 'low demand' plus 'abusers'
Facebook slurps 'paste sites' for STOLEN passwords, sprinkles on hash and salt
Zuck's ad empire DOESN'T see details in plain text. Phew!
Pssst. Want to buy a timeshare in the clouds?
The Google dilemma — controller or spreader of knowledge?
CAGE MATCH: Microsoft, Dell open co-located bit barns in Oz
Whole new species of XaaS spawning in the antipodes
Microsoft and Dell’s cloud in a box: Instant Azure for the data centre
A less painful way to run Microsoft’s private cloud
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.