A two crystal arrangement to fight efficiency saturation in cross-polarized wave generation

Abstract : We describe a method that overcomes the observed saturation effect in cross polarized wave (XPW) generation. The previously reported internal efficiencies for XPW generation are known to be limited to around 15% whatever the length of the nonlinear medium and/or the input intensity values are. At the opposite, the theoretical limit had been estimated to be close to 25%. Here we show that using two thin BaF2 crystals separated at optimum distance the saturation level of XPW generation efficiency can be drastically increased. An internal efficiency of 30% is demonstrated experimentally using two BaF2 crystals.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00526306
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Submitted on : Thursday, October 14, 2010 - 11:46:11 AM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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A. Jullien, O. Albert, Gilles Cheriaux, Jean Etchepare, S. Kourtev, et al.. A two crystal arrangement to fight efficiency saturation in cross-polarized wave generation. Optics Express, Optical Society of America, 2006, 14 (7), pp.2760-2769. ⟨10.1364/OE.14.002760⟩. ⟨hal-00526306⟩

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