How Are Optical Fibres Used In Tele-communication?
Optical fibres are actually plastic or glass fibres that are designed in such a way that they confine light (as much as possible) in a form that is propagating. Optical fibres are widely used in telecommunications. Optical fibres are used in this role because they can transfer data quickly and in huge quantities. Light that travels through these cables moves at far less attenuation when compared to cables that are electric based. Signals of light propagating through the fibre can move at rates of transfer as high as 40 Gb/sec. The light can be carried through channels that are independent from each other and that are at different wavelengths of light. Fibres carry much more information over shorter time intervals and occupy far less space than conventional electric cables. They are also not considered fire hazards as no electric signal passes through them.
