It’s optical fiber so it’s good for miles.
OM1 through OM4 have full rate distances of less than 800 meters.
Yes there is faster stuff that goes for literal miles but saying that optical fiber can always go mile is incorrect.
Comment on Researchers unlock fiber optic connection 1.2 million times faster than broadband
Blue_Morpho@lemmy.world 2 months agoIt’s optical fiber so it’s good for miles. Unlikely to be at home for decades but telcos will use it for connecting networks.
Buelldozer@lemmy.today 2 months ago
JohnSwanFromTheLough@lemmy.world 2 months ago
To be fair it’s obviously meant that they’re talking about singlemode and not multimode.
4am@lemm.ee 2 months ago
No one said “always”; original comment is correct that fiber can literally go miles
blarth@thelemmy.club 2 months ago
It’s much more than just 100Gb/s.
A single fiber can carry over 90 channels of 400G each. The public is mislead by articles like this. It’s like saying that scientists have figured out how to deliver the power of the sun, but that technology would be reserved for the power company’s generation facilities, not your house.
Kazumara@discuss.tchncs.de 2 months ago
over 90 channels of 400G each
You mean with 50 GHz channels in the C-band? That would put you at something like 42 Gbaud/s with DP-QAM64 modulation, it probably works but your reach is going to be pretty shitty because your OSNR requirements will be high, so you can’t amplify often. I would think that 58 channels at 75 GHz or even 44 channels at 100 GHz are the more likely deployment scenarios.
On the other hand we aren’t struggling for spectrum yet, so I haven’t really had to make that call yet.
AstralPath@lemmy.ca 2 months ago
Its not stupid at all. “Broadband” speed is a term that laypeople across the country can at least conceptualize. Articles like this aren’t necessarily written exclusively for industry folks. If the population can’t relate to the information well, how can they hope to pressure telcos for better services?
Blue_Morpho@lemmy.world 2 months ago
So it’s fine if an article says Space X develops a new rocket that travels 100x faster than a car?
Because that implies a breakthrough when it’s actually not significantly faster than other rockets: it’s the speed needed to reach the ISS.
10X faster than existing fiber would be accurate reporting. Especially given that there are labs that have transmitted at peta bit speeds over optical already. So terabit isn’t significant, only his method.
KairuByte@lemmy.dbzer0.com 2 months ago
Those are two completely unrelated things.
Blue_Morpho@lemmy.world 2 months ago
Then give me a related analogy you would accept and I’ll easily twist it into a misleading comparison exactly the article did.
How about this, “British Telecom develops high speed internet 1700x faster than previous Internet service technology. Availability is today!”
The above statement is completely true.
Comparing to home Internet when it isn’t home Internet technology is misleading. Ignoring that there are already faster optical Internet speeds in other labs around the world is misleading.
9point6@lemmy.world 2 months ago
I wonder what non-telco applications will use this
I wonder if something like a sport stadium has video requirements that would get close with HFR 8K video?
fruitycoder@sh.itjust.works 2 months ago
Disaggregated compute might be able to leverage this in the data center. I could use this to get my server, gaming PC and home theater to share memory bandwidth on top of storage, heck maybe some direct memory access between distributed accelerators.
Gotta eat those PCI lanes somehow
Kazumara@discuss.tchncs.de 2 months ago
Disaggregated compute might be able to leverage this in the data center.
I don’t think people would fuck with amplifiers in a DC environment. Just using more fiber would be so much cheaper and easier to maintain. At least I haven’t heard of any current Datacenters even using conventional DWDM in the C-band.
At best Google was using Bidir Optics, which I suppose is a minimal form of wavelength division multiplexing.
credo@lemmy.world 2 months ago
Note they did not say 1.2 million times faster than fiber. Instead they compared it to the broadband definition; an obvious choice of clickbait terminology.