How has fibre optic technology changed over time?

Fibre optic technology is something that we tend to take for granted today. It has been to modern society what the invention of pipes marked for the Romans – an efficient way to carry something essential to those that need it at high speed. It can transmit higher volumes of data than copper cables, over a longer distance, and has a much greater resistance to interference and security breaches. But how has this fascinating technology changed over time?