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Multipath dispersion in fibre optic cable 
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#1
May1211, 02:35 AM

P: 112

1. The problem statement, all variables and given/known data
I saw this question on this forum Can anyone tell me where my maths has gone wrong? 3. The attempt at a solution I've tried to calculate the maximum possible path difference along a fibre of length l and width d that has a maximim transmission angle of to the normal of the core cladding boundary [tex]\theta[/tex]. I've come up with an expression for this path difference in terms of the length of the fibre... <Attached are my scribbles> (L is the longest path and [tex]\Delta[/tex]L is the greatest possible path difference.) The problem with this is that the maximum path difference is independant of the width of the fibre and depends only on the angle.. 


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