Japanese Institute breaks optical fiber speed record with 22.9 petabits per second — 1,000 times faster than existing cables
Japanese Institute breaks optical fiber speed record with 22.9 petabits per second — 1,000 times faster than existing cables
Speedy thing goes in, speedy thing comes out.
Speedy thing goes in, speedy thing comes out.
You're viewing a single thread.
For those wanting a bit of a summary.
transmitting up to 22.9 petabits per second (Pb/s) through a single optic cable composed of multiple fibers
The breakthrough isn’t things moving faster but more fibers per cable. So you can transfer more bits in parallel.
That’s still a good breakthrough because, for lots of reasons, packing more fibers in isn’t as straight forward as one would think.
The breakthrough isn’t things moving faster but more fibers per cable.
No, it's actually more cores per fiber, and using those very well for space division multiplexing on top of the normal wavelength division multiplexing. They are talking about 22.9 Pb/s per fiber, not cable, the Tom's Hardware article is just wrong.
Cables can already contain hundreds of fibers, for example 576 here or into the thousands if you use stacks of ribbon cables in the subunits, for example 3456 here
Here's a source that backs up what you're talking about and proving that the TomsHardware article is wrong: https://www.nict.go.jp/en/press/2023/11/30-1.html
Thank you!
Yes, thanks to all for contributing and assisting. I am grateful for the clarification and leg work. Folks say reddit had this, and lemmy has less, so every time I see it, I make sure to appreciate it.
Am I to understand that the cable use has multiple cores within a single cladding? Interesting approach..
Now we get to classify them as singlemode, multimode, and multiestmode.
Yeah. Check this comment
This is really interesting. Thank you for providing good insight!