Journal of Applied Spectroscopy

, Volume 77, Issue 3, pp 364–370 | Cite as

Cascade parametric light amplification with low-frequency pumping


Cascade parametric amplification in a regular domain structure is examined theoretically taking the variations in phase of all the interacting waves in a dissipative medium into account. Analytic expressions are obtained for the conversion efficiency of the laser energy with low-frequency pumping. The dependence of the parametric amplification efficiency on the number of layers is given. Ways of increasing the frequency conversion efficiency are discussed. The presence of a nonzero input intensity at the sum frequency is found to cause a nonlinear increase in the high-frequency signal at the output of the structure. As the losses of the interacting waves increase, both the frequency conversion efficiency and the optimum domain length decrease.


regular domain structures constant intensity approximation parametric conversion 


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© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  1. 1.Azerbaijan Medical UniversityBakuAzerbaijan
  2. 2.Baku State UniversityBakuAzerbaijan

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