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Modulating a Laser

  1. Dec 17, 2010 #1
    Hello, I am interested in modulating a laser beam with a radio frequency. Can I input the signal to the laser, or do I need to modify the beam with something like a heterodyne interferometer. If both approaches would work, would the resulting beam be the same?

    Thanks, Bill
  2. jcsd
  3. Dec 20, 2010 #2

    Claude Bile

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    It depends on your laser system and how much bandwidth is available to your switching mechanism. An Electro-optic or Acousto-optic switch should have sufficient bandwidth to modulate the laser output at radio frequencies.

  4. May 19, 2011 #3

    Andy Resnick

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    What are you modulating- the amplitude, the frequency, the polarization....?
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