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arXiv · 0904.4577

Experimental characterization of three-wave mixing in a multimode nonlinear KTiOPO_4 waveguide

Michal Karpinski·Czeslaw Radzewicz·Konrad Banaszek
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Abstract

We report experimental determination of the phase-matching function for type-II three-wave mixing in a periodically poled KTiOPO_4 waveguide in the 792-815 nm spectral region. The measurement was performed by sum-frequency generation of spectrally tuned fundamental components. Strong dependence of the observed signal on the excited spatial modes in the waveguide has been observed and fully interpreted. These results indicate a route to employ the waveguide for spontaneous parametric down-conversion producing photon pairs in well-defined spatial modes.

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Michal Karpinski, Czeslaw Radzewicz, Konrad Banaszek. 2010-07-21. Experimental characterization of three-wave mixing in a multimode nonlinear KTiOPO_4 waveguide. https://doi.org/10.1063/1.3132086

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