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Fiberoptics and Lasers

  1. Dec 9, 2008 #1
    Do fiberoptic cables use lasers, or regular light? (or can they use either depending on the situation)
  2. jcsd
  3. Dec 9, 2008 #2


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    Fibre optics will carry any light depending on the wavelength they are designed for.
    Telecoms applications generally use lasers, they are high power, have a well controlled wavelength and you can switch them quickly.
  4. Dec 9, 2008 #3
    Thank you.

    I thought they used lasers, but couldn't find a source for that.
  5. Dec 9, 2008 #4


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    They can use either, as mgb_phys said.

    Here is an example where regular visible light is transmitted by fibers:
    http://www.edmundoptics.com/onlinecatalog/DisplayProduct.cfm?productid=1355 [Broken]
    Last edited by a moderator: May 3, 2017
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