[tiffanyh]

Anything you can share on latency?

(congrats on the achievement)

[Rebelgecko]

Isn't it just "distance/c"? (or something like 0.999c since light is a bit slower in the atmosphere)

[tiffanyh]

That's why I actually ask.

E.g. "light travels approximately 1.5x slower through optical fiber than in a vacuum"

https://www.commscope.com/globalassets/digizuite/2799-latenc...

[bloggie]

Fun and somewhat related fact - this is one of the main advantages of hollow-core transmission fibers! As far as I know, currently only used to extend the range of HFT orgs...

[itishappy]

Hollow core fiber? Total internal reflection requires the core to be a higher index of refraction than the cladding, so I wonder how that works!

Turns out, it functions differently. Instead of total internal refraction it has to rely on weird physics like photonic crystals. The pictures are absolutely wild.

https://www.rp-photonics.com/hollow_core_fibers.html

https://www.google.com/search?q=hollow+core+fiber&tbm=isch

[aaronax]

Fascinating; thanks for the links. I wonder how the splicing process works for that.

[ccakes]

Terrestrial radio links are similar in that they can be lower latency than fibre though spectrum concerns can come into play.

[brianwawok]

Radio links can also often be straighter. Easier to go over someone’s house then ask permission to dig a trench.

[Arnavion]

("1.5x slower" == "its speed in optical fiber is 1/1.5 = 2/3 of the speed in vacuum")

[discordance]

It's all relative.