NEC to Build a Next-Generation Link Between Japan and the U.S.
NEC Corporationย will build the new trans-Pacific subsea cableย JUNO, connecting California, USA, to two landing sites in Japan. The 10,000-kilometer system will strengthen data connectivity between Asia and North America.
The project will be developed byย Seren Juno Network Co. (Seren)โa joint venture betweenย NTT Ltd. Japan Corporation,ย Mitsui & Co., Ltd.,ย PC Landing Corp., andย JA Mitsui Leasing, Ltd.. The cable will land inย Chiba Prefecture, east of Tokyo, andย Mie Prefectureย in Japanโs Kansai region.
Advanced Technology Delivers Record 350 Tbps Speed
Traditional subsea cables usually include 16 fiber pairs. However, JUNO will use NECโsย energy-efficient repeatersย andย Space Division Multiplexing (SDM)ย technology to support up to 20 fiber pairs for the first time on a trans-Pacific route.
This advancement will deliver an impressiveย 350 Tbpsย of total capacityโthe highest among any cable linking the U.S. and Japan. As a result, JUNO will enable faster transfers, lower latency, and more reliable cloud connectivity.
Boosting Global Internet Demand and Cloud Growth
The worldโs digital economy continues to grow rapidly, and demand for high-speed cloud connections keeps rising. Therefore, JUNO will play a key role in expanding global internet infrastructure.
โThe undersea internet cable sector is becoming essential for global connectivity,โ notedย Takanobu Maeda, President and CEO ofย NTT Ltd. Japan Corporation. โThis new cable reinforces our long-standing commitment to secure and efficient internet access worldwide.โ
Strengthening Network Resilience and 5G Expansion
The cableโs dual landing points will make it more resilient to natural disasters along Japanโs coast. In addition, itsย dynamic bandwidth controlsย will let operators adjust capacity quickly as business needs change.
This flexibility supportsย 5G growth, higher data demands, and faster content delivery across Asia and North America. Ultimately, it ensures strong, reliable performance for both enterprises and cloud providers.
NECโs Long History of Submarine Cable Expertise
For more thanย 50 years, NEC has supplied cutting-edge submarine networks. The company has already built overย 300,000 kilometersย of undersea cables worldwide.
Its subsidiary,ย OCC Corporation, produces optical cables that function in waters deeper than 8,000 meters. Moreover, NEC handles the entire processโfromย design and route surveysย toย installation, testing, and trainingโensuring efficiency and long-term reliability.
