How Does Fibre Broadband Work So Fast?

spectrum, rainbow, prism, light, fibre, full fibre, fibre broadbandIf you remember your physics from school you’ll know that electricity travels at the speed of light, and that the speed of light is a constant (provided it’s travelling through a medium which isn’t incredibly dense, or incredibly cold, or a black hole… OK in NORMAL circumstances light speed is a constant!), so if electricity can travel down a wire that fast, how does fibre, which uses light instead of electricity, transmit so much more data?


It’s not as if Full Fibre is a little bit faster than copper wire either. Depending on how far you are from the internet exchange you’re using you could get speeds of up to 80 Mbps on copper cable. If you happened to live 100 metres or less from the servers. Go to 200 metres and your speed could drop to 65 Mbps, and it would get slower and slower the further you kept going without the introduction of repeaters, boosters and other devices that keep the signal strong and fast. Read more