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Trans Pacific Networks selects Ciena to upgrade Echo and Tabua subsea cables

27 January 2026
2 minutes
Trans Pacific Networks (TPN) has selected Ciena to supply optical technology for its Echo and Tabua subsea cable systems, strengthening high-speed connectivity across key transpacific routes linking the US with Southeast Asia and the South Pacific.
Ciena stock image.png
Ciena stock image.png

TPN operates fibre pairs on both systems, with Echo recognised as the world’s longest subsea digital line segment, spanning more than 16,000km. Using Ciena’s WaveLogic 6 Extreme (WL6e) technology alongside its 6500 Reconfigurable Line System (RLS), TPN will be able to deliver terabit-scale wavelengths while improving power and space efficiency across long-haul submarine routes.

The deployment supports connectivity between the US, Indonesia and Singapore on Echo, and between the US, Australia and Fiji on Tabua. Both systems are designed to meet growing demand for low-latency, high-capacity infrastructure driven by cloud services, AI workloads and data-intensive applications.

Pioneer Consulting is overseeing route engineering, technical quality assurance and end-to-end project execution, building on its long-standing involvement in the Echo project since its early concept phase.

Founded in 2016, TPN is developing a new, direct transpacific network, with Echo as its flagship system. Echo provides a non-stop express route between the US and Singapore, offering lower latency access to major financial and technology hubs, including workloads hosted on Google Cloud Platform infrastructure.

Tabua, meanwhile, forms part of Google’s South Pacific Connect initiative. The system features 16 fibre pairs across its trunk and branching segments, with each fibre pair designed for a minimum capacity of approximately 17Tb/s, delivering a total system capacity of 272Tb/s using current technology.

TPN is deploying Ciena’s GeoMesh Extreme solution, which combines the Waveserver compact interconnect platform powered by WL6e with the 6500 RLS. Ciena’s open architecture supports spectrum sharing and scalable upgrades, allowing TPN to expand capacity as demand grows. Ciena’s professional services team will also provide installation and ongoing support.

The upgrade is expected to enhance network resilience and performance while supporting economic growth by enabling reliable, high-speed internet access across the Asia-Pacific region.

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