Question

why optical fibres are called as wave guides?
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Answer 1

Explanation:

Optical fiber is actually a waveguide for light and operates in accordance with a principle known as total internal reflection. In contrast to electrical conduction, there is low loss and signals can be conveyed over considerable distances without amplification.

Answer 2

Answer:

An optical waveguide is a spatially inhomogeneous structure for guiding light, i.e. for restricting the spatial region in which light can propagate. Usually, a waveguide contains a region of increased refractive index, compared with the surrounding medium (called cladding).

Explanation:

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