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Cable Technology Feature Article

August 25, 2011

Xtera and Kokusai Cable Ship to Build the GOKI Submarine Cable for AT&T

By Nathesh, TMCnet Contributor

Xtera Communications (News - Alert), a provider of network infrastructure that delivers maximum capacity, reach and value, and Kokusai Cable Ship (KCS), a subsidiary of Japan based KDDI that installs and maintains submarine cables, oceanographic surveys and research, have been summoned by AT&T (News - Alert) to construct the GOKI (Guam, Okinawa, Kyushu, Incheon) submarine cable system.

The GOKI cable network will be a private, non-common starter fiber optic cable directly linking Guam and Japan and may be extended to Incheon, Korea. The cable will span 2546 miles linking an existing cable station in Tumon Bay, Guam that is owned and operated by a subsidiary of AT&T to an existing cable station in Okinawa, Japan and a new cable station in Kyushu, Japan both owned and operated by KDDI (News - Alert) Japan.

Xtera and KCS will combine approximately 1300 km of redeployed cable with remaining sections of the Transpacific-5 (TPC-5), an early first generation optically amplified submarine cable system, and a retired regional submarine cable. The new system will be fitted with Xtera's Nu-Wave XLR regional repeatered SLTE (Submarine Line Terminal Equipment) to maximize capacity.

According to Xtrea, the Nu-Wave XLR is a compact, cost-effective high performance DWDM system optimized for the upgrade of medium-haul repeatered submarine systems. The solution is designed to help service providers respond quickly to upgrade their existing submarine cables by rapidly adding more capacity to existing systems.

The selection of Xtera to supply the SLTE and provide redeployment services including: project management, system design and integration services is claimed by the company to be a showcase of its expertise in the design of submarine systems and high-performance submarine optical equipment.

Officials with KCS remarked that they are very pleased to work on the GOKI project in partnership with Xtera. KCS had a successful experience on recovery and re-lay work utilizing a retired cable system in the Japan Sea about three years ago. This new project will prove KCS's performance and capability on various marine services and be another milestone for KCS.

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Nathesh is a contributing editor for TMCnet. To read more of Nathesh's articles, please visit his columnist page.

Edited by Rich Steeves