TITLE

Experimental characterization of three-wave mixing in a multimode nonlinear KTiOPO4 waveguide

AUTHOR(S)
Karpiński, Michał; Radzewicz, Czesław; Banaszek, Konrad
PUB. DATE
May 2009
SOURCE
Applied Physics Letters;5/4/2009, Vol. 94 Issue 18, p181105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report experimental determination of the phase-matching function for type-II three-wave mixing in a periodically poled KTiOPO4 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.
ACCESSION #
39354721

 

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