Fibre Optics

Fibre optic cables use light to transmit information globally, supporting over 32,000 calls simultaneously. They work by converting electrical signals into light pulses, which travel through glass strands using total internal reflection. This method ensures minimal data loss and high efficiency. Fibre optics are thin, with each strand capable of carrying multiple signals, surpassing copper cables in capacity.

What is the primary function of fibre optic cables?

How does a laser contribute to the functioning of fibre optic cables?

Explain the phenomenon of total internal reflection in the context of fibre optics.

What happens to light when it hits the inside surface of the glass at an angle greater than the critical angle?

Discuss the advantages of fibre optic cables over traditional copper cables.