What is the principal of optical fibre ?

The principal behind optical fibres is

What are optical fibres ? What is the principle on which optical fibre works ?

a. What is the principle used in optical fibres ? b. Explain briefly the working principle. c. What are the uses of optical fibres ?

What is the advantage of optical fibre communication ?

What is the basis of an optical fibre ?

In an optical fibre

What is the major use of optical fibres?

What is the structure of an optical fibre?