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Efficiency of non-linear optical device

  1. Oct 17, 2014 #1
    It is said that a non-linear optical device may convert light into its higher order components. So what is the highest efficiency of the conversion? Can a non-linear device convert all input light into its higher order frequency?

  2. jcsd
  3. Oct 19, 2014 #2


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  4. Oct 20, 2014 #3


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    As dlgoff indicated, this is more a technological question instead of a question regarding fundamental quantum physics. Rüdiger Paschotta's Encyclopedia of Laser Physics and Technology is a nice resource for such questions. From its article onSecond Harmonic Generation, I got the following reference:

    Optics Letters, Vol. 19, Issue 17, pp. 1325-1327 (1994)
    R. Paschotta et al.
    "We describe a frequency-doubling monolithic standing-wave resonator made of MgO: LiNbO3 with dielectric mirror coatings for impedance matching near 100 mW input power and near-optimum nonlinear coupling. An external conversion efficiency of 82% has been achieved."

    This indicates that the efficiency can be made close to one under certain circumstances.
  5. Oct 20, 2014 #4
    Thank dlgoff and kith. 82% is a good enough efficiency for my question.
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