Engineering competing nonlinearities.

  title={Engineering competing nonlinearities.},
  author={Ole Christiansen Bang and Clifford Clausen and Peter Leth Christiansen and Llu{\'i}s Torner},
  journal={Optics letters},
  volume={24 20},
Weak modulation of a quasi-phase-matching (QPM) grating opens possibilities for engineering both the average quadratic nonlinearity and the incoherent average cubic nonlinearity induced by QPM. The relative strength of the average quadratic and effective (intrinsic plus induced) cubic nonlinearity is studied for LiNbO(3) . We show how the induced average cubic nonlinearity can be engineered to dominate the intrinsic material cubic nonlinearity and how doing so will allow the intensity at which… CONTINUE READING


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