Wiktionary
fibre optic
a. of, or relating to fibre optics, or to optical fibre alt. of, or relating to fibre optics, or to optical fibre
Usage examples of "fibre optic".
Of course there were one or two technical difficulties to be ironed out, like how to transfer food along copper wire and fibre optic cable, but in time.
There is also need to connect the fibre optic infrastructure which characterizes cable companies to the old copper coaxial infrastructure which characterizes telephony.