1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar
    Science Advisor
    Homework Helper

    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


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    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
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook