Alcatel-Lucent is upgrading 9,600km trans-Pacific digital submarine cable system using coherent technology. The cable, owned by 5 major carriers, provides connectivity from the Japanese east coast to California.
According to TeleGeography, the amount of trans-Pacific used capacity will increase at a compound annual rate of 36 percent between now and 2018.
The upgrade will quadruple its original design capacity by use of Alcatel-Lucent’s advanced coherent technology, delivering an ultimate capacity of up to 4 Terabits per second (Tbit/s) per fiber pair which is equivalent to approximately 500,000 HDTV channels simultaneously broadcasting a live major sporting event.
Construction of the Unity Trans Pacific fiber system was first announced in February 2008 by a consortium composed of six international companies, including Bharti Airtel, Global Transit, Google, KDDI Corp., Pacnet, and SingTel with a construction cost at approximately $300 million.
The Alcatel-Lucent solution is based on the 1620 Light Manager submarine line terminal equipment using coherent technology at 40G, expandable to 100G. The upgrade solution will be managed by the Alcatel-Lucent 1350 optical management system.
In 2010 and 2011, 19 systems worth an aggregate $3.7 billion were launched, reports Telegeography, and the pace of growth will only pick up in the next few years. Throughout 2012 and 2013, 33 submarine cable systems costing a projected total of $5.5 billion will be deployed.
The first Submarine communications cables carried telegraphy traffic. The first attempt at laying a transatlantic telegraph cable was in 1858. However, it was plagued with problems from the outset, and was in operation for only a month. Subsequent attempts in 1865 and 1866 produced the first successful transatlantic cable.
With 4 Fiber Pairs and 100 waves x 100 Gbps each, a submarine cable can now deliver a combined 40 Terabits/second. The 40 Tbit/sec Emerald Express cable, connecting Europe to the US, is scheduled to be ready for service by Fall, 2013.
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