Feeds

Submarine cables get simpler, faster

No need for signal regeneration at sea or on land

The Power of One eBook: Top reasons to choose HP BladeSystem

Submarine cables and other long distance data connections may now be simpler and cheaper to deploy and operate, thanks to a new set of products from Ciena.

Ciena is the heir to Nortel’s Optical Multi Service Edge 6500 products and has wrapped them up, with its own kit, into the new WaveeLogic 3 suite.

The headline act for the new kit is a reduced need for signal regeneration equipment in terrestrial cables. Regeneration is a necessary evil in long fibres because light attenuates and other noises and distortions creep into the signal. Most long fibres therefore use a powered box every 50 to 80 kilometres to regenerate the signal amplify it. The regeneration process sees a conversion from optical to electronic form, before another conversion to light for the hop to the next box down the line.

Ciena’s new kit uses a digital signal processor to clean a signal, removing the need for regeneration. That in turn means reduced power requirements.

The new arrangement also means less latency on long fibre cables, as each signal regeneration box needed time to perform its task. Long cables may now offer better carriage for collaborative applications.

Beneath the waves, fibres can now be uncompensated for chromatic dispersion which will further reduce the cost, complexity, and reach of next generation submarine cables. That's good news because laying cables is a tricky and expensive business. Ciena's new kit can also upgrade bandwidth of existing cables, if operators are willing to pop new boxen at either end.

That approach is already winning real-world customers, with the Australia Japan Cable (AJC) signing up for Ciena’s new 6500-class kit and cranking up its cables to 40Gbps. AJC CEO David Crofts says that means the company can “expeditiously augment AJC’s existing capacity plus support OTN services from day one also played a key role noting the continually increasing data volumes carried by AJC.”

Back on land, the upgraded product can also reach 400 Gbps in metropolitan or regional networks. ®

Maximizing your infrastructure through virtualization

More from The Register

next story
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Apple orders huge MOUNTAIN of 80 MILLION 'Air' iPhone 6s
Bigger, harder trouser bulges foretold for fanbois
Bring back error correction, say Danish 'net boffins
We don't need no steenkin' TCP/IP retransmission and the congestion it causes
GoTenna: How does this 'magic' work?
An ideal product if you believe the Earth is flat
Samsung Z Tizen OS mobe is post-phoned – this time for good?
Russian launch for Sammy's non-droid knocked back
Telstra to KILL 2G network by end of 2016
GSM now stands for Grave-Seeking-Mobile network
Seeking LTE expert to insert small cells into BT customers' places
Is this the first step to a FON-a-like 4G network?
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.