What is Optical Fibre? Why is it better than Copper Wire for using the Internet?
An optical fibre is a solid rod of transparent material, which can be as fine as a strand of human hair, designed to efficiently guide light from one place to another. The most common raw material for making optical fibres is very pure silica sand. This is used because it is relatively inexpensive and can be formed into an ultra pure glass. When you use a computer to do something like sending an email or making a phone call, your text or voice (the data) needs to be transmitted from computer to computer. A possible way of doing this is sending it via a cable, and the choice is between electrical transmission over copper wire and optical transmission over fibre.
