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    How does light travel inside an optical fiber?

    Question #59665. Asked by dim_dude. (Sep 30 05 7:28 AM)


    JoshCaleb12

    		The "view" from the inside is like looking down a mirrored tunnel... so the light bounces down the sides...

    Sep 30 05, 9:06 AM
    JoshCaleb12

    		http://www.arcelect.com/fibercable.htm

    Sep 30 05, 9:07 AM
    peasypod

    		By total internal reflection. Since the angle at which the light travels is always less than the critical angle for the fibre interface (the refractive index of the fibre is greater than the cladding - a bit different to a mirror) the light is totally reflected and hence no losses from the fibre.

    Sep 30 05, 3:02 PM
    dim_dude

    		thanks to all

    Oct 01 05, 1:22 PM

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