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Module 2. Physics

What is the thickness of a single mode fibre optic?

  • 50 micrometres
  • 5 micrometres.
  • 15 micrometres

Explanation

Single-mode fibre uses a very narrow core, on the order of a few micrometres, so that only one light path propagates; among the options 5 micrometres is the single-mode figure. The larger 50 micrometre core is characteristic of multimode fibre, which carries many modes at once.

ramesh321 asking:

can any one explain why it is 50 micrometer and why not 5 micrometer

Community Comments (3)

D
dimky Posts: 514 01.10.2013 / 21:22
5 micrometers, you right. I corrected this question. Thanks.
R
ramesh321 Posts: 8 02.10.2013 / 02:45
thank you Buddy
J
Jordi Posts: 198 14.06.2020 / 16:43
typical size is 8-10μm

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