Researchers have set a new speed record for an industry standard optical fiber, achieving 1.7 Petabits over a 67 km length of fiber. The fiber, which contains 19 cores that can each carry a signal, meets the global standards for fiber size ensuring that it can be adopted without massive infrastructure change.
I saw someone compare that to downloading 2,650 4K movies (80GB each) in one second. That’s a big leap from what was possible…
Back in 1988, the first subsea fiber-optic cable across the Atlantic had a capacity of 20 Megabits or 40,000 telephone calls, in two pairs of fibers. Known as TAT 8, it came just in time to support the development of the World Wide Web. But it was soon at capacity.
The latest generation of subsea cables such as the Grace Hopper cable, which went into service in 2022, carries 22 Terabits in each of 16 fiber pairs. That’s a million times more capacity than TAT 8.
But it’s still not enough to meet the demand for streaming TV, video conferencing and all our other global communication.
Here’s how they improved it…
To meet the exponentially growing demand for movement of data, telecommunication companies need technologies that offer greater data flow for reduced cost.
The newly-developed fiber contains 19 cores that can each carry a signal.
“We’ve created a compact glass chip with a wave guide pattern etched into it by a 3D laser printing technology,” Dr. Gross said.
“It allows feeding of signals into the 19 individual cores of the fiber simultaneously with uniform low losses.”
And what’s the current definition of broadband? Very often I see unserved defined as less than 25 Mbps down and 3 up (25/3), anyone with less than 100/20 is underserved and served is better than that. Maybe it’s time to revisit.