wiredInUSA February 2016

Repeatered project Xtera Communications has announced the completion, on schedule, of the marine installation of its second repeatered submarine cable system. Xtera completed testing of all the fiber pairs between the two landing sites in the fourth quarter of 2015.

fiber subsea cable system connecting Porthcurno, Guernsey, and Lannion (France), where Xtera’s next generation wideband repeaters were inserted into the existing cable plant to increase system capacity,” said Stuart Barnes, senior vice president and general manager, Xtera submarine business. Xtera pioneered Raman optical amplification in long-haul optical transmission infrastructure with its Wise Raman™ solution. In April 2013, Xtera launched the industry’s first optical wideband repeater featuring Raman amplification for long-haul subsea cable systems. The new repeater adds to Xtera’s turnkey solutions for building new subsea cable systems or upgrading existing wet plant, including repeater replacement or re-lay of decommissioned cable systems.

The 1,500km cable system is built with Xtera’s Raman-based repeaters, offering multiple optical transmission benefits including wider spectrum, better noise performance, longer repeater spacing and higher tolerance to strong increases in span loss compared with repeaters based on erbium-doped fiber amplifiers. “This new repeatered project has been deployed after the successful upgrade of the high capacity, undersea Guernsey optical

wiredInUSA - February 2016

14