JUNE 23, 2010 -- Tyco Electronics Subsea Communications (SubCom) says it has successfully demonstrated 64x40-Gbps transmission over 6,500 km. Conducted over an existing Tata Communications link in the Atlantic Ocean using SubCom’s G4 submarine line terminal equipment (SLTE), the data was carried from Highbridge, UK, to Wall, NJ, error-free with a significant performance margin across the entire band, Tyco SubCom asserts.
“We view this development as a significant milestone in the evolution of undersea cable transmission capability,” said David Coughlan, president of SubCom, “40-Gbps transmission is clearly the next standard for long-haul transmission, including undersea.”
During the test, multiple 40G signals were transmitted over an Atlantic link of the Tata Global Network (TGN). A total capacity of 2.56 Tbps was successfully demonstrated on a fiber pair, representing 4X the original design capacity of 640 Gbps.
SubCom’s G4 SLTE offers a field-pluggable 40G transponder as well as a 4x10 muxponder, each with software-reconfigurable multiple tributary protocols.
“The success of this field demonstration, which was made possible due largely to the superior support and cooperation by both the Tata Communications and TE SubCom teams, represents a significant increase of the network capacity of the existing system,” said John Hayduk, CTO at Tata Communications
“The deployment of 40G on undersea cable systems is enabled by the confluence of 40G build-outs on terrestrial links and the availability of long-reach 40G transponders. As higher bit rates become more prevalent in the terrestrial market these services will naturally be required on undersea cables,” said Dr. Seymour Shapiro, VP, R&D and CTO of SubCom. “Over the next year we expect to see 40G deployments starting with upgrades of existing systems. Our G4 product line, which will be generally available to our customers in the latter half of 2010, represents a state-of-the-art and reliable solution to the migration of existing 10G networks to next-generation 40G networks, as well as the deployment of 40G technology on new builds.”
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