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     Fibre optics is one of the most interesting and current fields of Physics today. It is the backbone and concept behind optical fibres which have important applications in many industries today. 

     Optical fibres are long, thin strands of very pure glass. They have the diameter of around that of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances. Optical fibres are commonly used in telecommunication systems, as well as in illumination, sensors of imaging optics.

 

Uses of Optical fibres are :

     Communication :- Telephone transmission method uses fibre-optic cables. Optical fibres transmit energy in the form of light pulses. The technology is similar to that of the coaxial cable, except that the optical fibres can handle tens of thousands of conversations simultaneously. 

 

     Medical uses :- Optical fibres are well suited for medical use. They can be made in extremely thin, flexible strands for insertion into the blood vessels, lungs, and other hollow parts of the body. Optical fibres are used in a number of instruments that enable doctors to view internal body parts without having to perform surgery.

 

     Simple uses :- The simplest application of optical fibres is the transmission of light to locations otherwise hard to reach. Also, bundles of several thousand very thin fibres assembled precisely side by side and optically polished at their ends, can be used to transmit images.