what is optical fiber & how does it works?

optical fibres are nothing but of a thin strand of wires which are made up of glass materials 

it works on the principle of total internal reflection

it has got two layers

(1) core [inner part]

(2) cladding [outer part]

these 2 have different refractive index

the advantages of optical fibre is that the datas or electrical signals can be transfered at high speed without any distraction

Dear BHARAT SINGH RATHORE,

An optical fiber is a flexible, transparent fiber made of very pure glass (silica) not much wider than a human hair that acts as a waveguide, or "light pipe", to transmit light between the two ends of the fiber. The field of applied science and engineering concerned with the design and application of optical fibers is known as fiber optics.

An optical fiber is a cylindrical dielectric waveguide (nonconducting waveguide) that transmits light along its axis, by the process of total internal reflection. The fiber consists of a core surrounded by a cladding layer, both of which are made of dielectric materials. To confine the optical signal in the core, the refractive index of the core must be greater than that of the cladding. The boundary between the core and cladding may either be abrupt, in step-index fiber, or gradual, in graded-index fiber.

Hope thishelped you immensely...

Regards,

AskIITians Expert,

Godfrey Classic Prince

IIT-Madras

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