Subsea Cable to Connect Asia, Europe, and North America Through the Arctic
cinia.fi
cinia.fi
2014: https://spectrum.ieee.org/arctic-fibre-project-to-link-japan...
Where it seems like we're pretty far from the theoretical min is connections within the continental US. Latency is pretty bad (e.g. I get like 1.5x - 4x the theoretical min latency from my Fiber connection in the SF Bay Area, depending on endpoint). I assume part of this is indirect connections (you don't have a direct fiber connection between every pair of cities, because that would be dumb) and some of it is routing overhead (a connection to Asia goes a long distance, but often has way fewer hops).
Note that this is theoretical min latency based on the speed of light through fiber*, which is a bit higher than (about 5/3x) the speed of light through air. New fiber optic tech might help this at some point.
It would make no difference: subsea cables are accessed via submarine, which don't care about ice (or no ice).
* https://www.theatlantic.com/international/archive/2013/07/th...
* https://www.lawfareblog.com/evaluating-russian-threat-unders...
* https://nationalinterest.org/blog/buzz/we-now-have-details-u...
https://en.wikipedia.org/wiki/Operation_Ivy_Bells?wprov=sfla...
I am wondering if this is made possible only because of the melting ice cap, where the "possibility" of travelling through the arctic is now a low cost issue. I am also assuming once the cable are laid, it doesn't make much of a difference whether the surface is Artic or Pacific? I am assuming the sea floor is roughly all the same.
And why aren't Greenland better connected? The only immediate upside I see is the Iceland Connection. Considering they have possibly the Greenest Datacenter on the planet. ( I do wonder how do they protect against Earthquake ? )
...Is there really any meaningful amount of EU>JP traffic going through China? No matter what I try to increase by bandwidth between the two (from residential as well as cloud) it always gets routed through US. Usually Phoenix. Never been able to get north of ~15Mbps IIRC. I’m sure there are providers that can provide better through private backbone and premium peering agreements, but I haven’t figured that out yet. If anyone has any tips or strategies on how to approach it would be very grateful. Even 50Mbps on a budget would be a game-changer.
My guess would be more about resilience. If a couple of key points get knocked out or saturated I imagine things could break pretty fast.
The ocean is incredibly difficult to explore under the best circumstances. We barely know what's down there in places with lots of traffic and a need for regular, slow, imprecise mapping. More than nothing is known about the floor there, but it's likely less precise and more out of date than places that were easier to reach. The Arctic Ocean wasn't even discovered--in the Age of Exploration sense, not in the "nobody knew about it" sense--until the 1800s. Exploration didn't properly begin until the 1950s.
https://www.britannica.com/place/Arctic-Ocean/Topography-of-...
> Phase 2: Extends from Washington State to Japan. Connects Alaska to Washington State.
> Phase 3: Connects Alaska to Canada. Extends through the Canadian Arctic to London, with landing stations at Thule AFB and Iceland.
this is only relevant for multimode fiber, right? in singlemode fiber the light must propagate parallel with the fiber. even in multimode fiber, some light is parallel, so it doesn’t necessarily limit latency — it creates dispersion.
Yeah, 1.0003 vs 1.0. Very close, but not the same was my point.
It’s always been wrong. By design the Starlink satellites communicated with each other. Too cost prohibitive and infeasible in other ways to have a ground station covering every satellite.
I'm curious how far each satellite is from the other, do they need line-of-sight. And how much it adds to latency since signals received and sent have to go through networking equipment within each satellite.
Yes, they do.
> And how much it adds to latency since signals received and sent have to go through networking equipment within each satellite.
Negligible vs the impact “speed of light” (aka distance) already has added to the latency.
As designed oceanic latencies will be lower than direct fibre, only microwave would be faster.
As currently deployed, starlink latency isn’t much to write home about as you only get a few hindered km to the ground station and then you’re on fibre.