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NEC Corporation, its subsidiary OCC Corporation and Sumitomo Electric Industries, Ltd. announced today that they have completed the first trial of uncoupled1 4-core submarine fiber cable2, and verified its transmission performance to meet the exacting demands of global telecommunications networks.

The reputation of C-Kore subsea test tools for quickly and accurately locating existing faults in subsea circuits, and for monitoring the integrity of new umbilicals during installation, continues to spread around the globe.

Demonstration of World Record Transmission

Researchers from the National Institute of Information and Communications Technology (NICT, President: TOKUDA Hideyuki, Ph.D.), Network Research Institute, succeeded the first S, C and L-bands transmission over long-haul distances in a 4-core optical fiber with standard outer diameter (0.125 mm).

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