Long-distance communication underground optical cable

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A submarine cable system is a network of fiber optic cables laid on the ocean floor to transmit data between countries and continents. These cables can span thousands of kilometers, crossing oceans and linking major communication hubs. They connect major cities and data hubs such as New York and London, Lagos and Lisbon, Singapore and Los Angeles. Tokyo, Japan, March 21, 2024 - NEC Corporation (NEC; TSE: 6701) and NTT Corporation (NTT) today announced that they have successfully conducted a first-of-its-kind transoceanic-class 7,280km transmission experiment using a coupled 12-core multicore fiber (*1), which consists of 12 optical signal. LINK-PP Optics Transceivers are precisely calibrated and rigorously tested to ensure stable, accurate performance in advanced underwater optical systems. At GL FIBER (), we specialize in manufacturing high-quality underground fiber optic cables, including GYTA53, GYFTYA53.

First-of-Its-Kind, Large-Capacity 12-Core Optical Fiber: Successful

In this press release, we announce the success of our transoceanic long-distance transmission experiment over 7,280 km using 12-core optical fiber. We spoke with the researchers

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Submarine Cable FAQs

Submarine Cable 101 How many cables are there? As of 2026, we track more than 600 active and planned submarine cables. The total number of active cables is

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