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Cladding

Tynos

Reply 1

Stonebridge

Original post by Tynos

Correct. Rays with angle of incidence greater than the critical angle are totally internally reflected, so increasing the critical angle would mean more rays (out of a number of rays at different random angles) would be refracted and not reflected.

Reply 2

Tynos

Original post by Stonebridge

Then whats the point -.-?

And what does Cladding do?

Reply 3

x-Sophie-x

Original post by Tynos

Then whats the point -.-?

And what does Cladding do?

The cladding prevents the ray escaping. So optical fibres have a cladding layer to prevent the loss of data, and to keep the data secure.

And it reduces multipath dispersion or you'd get the rays merging together at different times.

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