Arctic Way: The 2,350-Kilometer Cable That Will Become the Internet's Northernmost Wire

The internet reaches Svalbard, a Norwegian archipelago closer to the North Pole than to Oslo, through a pair of fiber optic cables laid on the seafloor of the Norwegian Sea more than two decades ago. Those cables are approaching the end of their 25-year design life, and Norway has been planning their successor for years. On October 13, Space Norway took the next big step, awarding Ciena a turnkey contract to modernize the existing Svalbard cable systems and supply the optical networking technology for Arctic Way, the 2,350-kilometer system that will become the world's northernmost subsea cable when it enters service in 2028.

The Arctic Way story is really three stories braided together: the physics of pushing light through 2,350 kilometers of glass under the Arctic Ocean, the economics of upgrading a cable's electronics instead of its fiber, and the geopolitics of who controls the internet's on-ramps at the top of the world.

The deal, in one paragraph

Space Norway, the Norwegian state-owned operator of satellites and communications infrastructure, signed Ciena to design and deploy the optical side of Arctic Way. That means Ciena's 6500 Optical Platform powered by WaveLogic 6 Extreme transponders, plus spectrum-sharing technology and the Navigator Network Control Suite for managing the network. The same agreement extends the operational life of the two existing Svalbard cables. By standardizing on one vendor's optical gear across both old and new routes, Space Norway expects lower operating costs and consistent performance, with terrestrial extensions planned for the future.

This is a separate job from the wet plant: the actual cable. SubCom, the American subsea cable builder, was contracted in May 2025 to survey, design, manufacture, and install Arctic Way itself, building the cable at its campus in Newington, New Hampshire, and laying it with a polar-certified Reliance Class vessel. In the subsea industry the company that builds the cable and the company that lights it are often different vendors, and Arctic Way is no exception.

What 2,350 kilometers under the Arctic actually means

Arctic Way is a trunk-and-branch system that runs entirely within the Arctic Circle, between 67 and 78 degrees north latitude. A trunk cable runs from Bodø on the Norwegian mainland toward Svalbard, with a branch landing at Jan Mayen, the remote volcanic island roughly halfway between the two. The three shore landings sit in Bodø, Jan Mayen, and Longyearbyen on Svalbard. The nearshore section between Bodø and Fauske will use double-armored cable carrying 96 fiber strands, heavier protection for the shallow waters where anchors and fishing trawlers do most of their damage.

The Jan Mayen landing has its own backstory. Space Norway is partnering with the Norwegian Ministry of Defense, whose building agency Forsvarsbygg is already constructing a new Armed Forces station on the island, to build the cable landing station and handle excavation, logistics, and transport. The island has essentially no civilian infrastructure, so piggybacking on an active military construction project is the only way a landing station there makes economic sense.

Everything about laying cable at these latitudes is harder than normal. The lay vessel needs polar certification, with reinforced hulls and crews trained for ice. Survey windows are limited by sea ice and polar weather. When something goes wrong, repair ships face the same constraints, which is one reason redundancy matters so much up here. It is also why timeline slips are routine in this industry, and why Arctic Way's target of entering service in the second quarter of 2028 comes with the usual caveats about weather and permits.

The internet's physical map is not finished. The last frontier is the top of the globe, and it is being drawn in 2,350 kilometers of glass.

Why upgrade the old cables instead of just replacing them

This is the part of the deal most worth understanding, because it explains how internet capacity grows worldwide. A subsea cable's fiber strands, once laid on the ocean floor, are a fixed asset. The electronics at each end, the transponders that shoot lasers into the fiber and decode what comes out, determine how many terabits per second you can squeeze through. Replace 20-year-old terminals with modern coherent optics and you can multiply a cable's usable capacity several times over without touching the seabed at all.

WaveLogic 6 Extreme is Ciena's newest generation of that technology: coherent transponders that, per Ciena's published specifications, can push up to 1.6 terabits per second on a single wavelength in the newest deployments, using digital signal processing to untangle the distortions light accumulates over thousands of kilometers. (Space Norway has not disclosed the per-wavelength rates planned for Arctic Way, so treat that figure as what the hardware generation is capable of, not what this system will run at.) Spectrum sharing lets the operator carve up the fiber's total spectrum and hand virtual slices to different customers, the way a hard drive gets partitioned. The Navigator Network Control Suite provides the software layer for provisioning and monitoring, the network equivalent of a flight-management system.

Light also needs help along the way. Signals fade as they travel through glass, so a repeatered cable like Arctic Way includes dozens of amplifier units spliced directly into the line, powered by electrical current carried on the cable's own copper sheath. Each amplifier is a sealed, pressurized cylinder that must survive decades at crushing depth with no servicing. That is why a subsea cable's design life is measured in quarter centuries: once the ship leaves, nobody is going down there to swap a board.

Why the top of the world is worth wiring

Svalbard is one of the world's major Arctic research hubs, home to climate monitoring stations, scientists, and satellite downlink facilities that need fat, reliable pipes heading south. Space Norway runs a hybrid network of satellites, teleports, fiber, and subsea cables, so Arctic Way will complement its satellite infrastructure with a high-capacity terrestrial path. When a cable is cut, and in the Arctic the options for sending a repair ship are thin, having more than one route is the whole game.

There is also a strategic current running under this announcement. Arctic Way was commissioned by the Norwegian Ministry of Trade, Industry and Fisheries, and it lands on an island where Norway's Armed Forces are building a new station. Control of Arctic connectivity is becoming as contested as Arctic shipping lanes and seabed resources. The world's northernmost cable is not just an engineering project. It is a statement about who keeps the top of the world connected.

For the rest of the internet, Arctic Way is a reminder that the network's physical map is still being drawn. The long-haul cables that carry most intercontinental traffic were laid to connect the world's big coastal cities. The next generation is about reaching the places those cables skipped: islands, Arctic research stations, and the emerging infrastructure of the far north. Every year, the map fills in a little more, and the light runs a little faster.