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News Technology

Meta Plans Petal: A Petabit Subsea Cable Between the United States and France

On September 21, Meta announced Petal, a planned subsea communications cable connecting the United States and France over approximately 7,000 kilometers. According to the company, it is intended to enter service in 2029 with a capacity of one petabit per second. This is a target for a future project, not a report of a cable already carrying commercial traffic.

Illustration of a fiber-optic communications cable on the ocean floor
Illustrative image created with AI.

The announced partners are NEC, Sumitomo Electric and Orange, the latter in connection with the French landing. Behind the headline number is a change in how light travels inside the fiber.

Two Cores in One Fiber

Meta's engineering explanation describes a system of 24 fiber pairs, with two cores in each fiber. The company presents this as a way to increase capacity without proportionally increasing infrastructure and power consumption.

The challenges it describes include reducing signal power loss and preventing interference between the cores. These details explain why adding capacity is not simply a decision to put more material into a cable: the signal must remain usable over a long distance, and every component along the way must fit into the system.

The figures describe the plans of Meta and its partners. At this stage, they do not include independent performance measurements of an active commercial service.

High Capacity Is Not Individual Speed

A petabit per second is a system capacity figure, not the speed promised to each user. To understand the difference, ask whether the discussion concerns the total information a network can carry, a particular home's connection speed or a service's response time. These are different questions.

Increasing capacity on a particular route does not by itself answer questions about an internet plan in Israel. Even if the project is completed as planned, the announcement does not promise lower prices, lower latency or a measurable improvement in a particular reader's home connection.

What Will Be Worth Watching

The next stage in assessing the project will be progress from planning to manufacturing, installation and entry into service. Follow announcements about these milestones separately, because each describes a different state. Announcing a technology, laying a cable and starting commercial operation are not the same event.

Petal shows the physical side of services sometimes perceived as existing only in the cloud. Messages, video and online work also depend on fibers, connections and equipment. In this case, the announced innovation is inside the fiber itself; its practical benefit will be assessed once the system starts operating.

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