Multistep cascading in periodically poled directional couplers

We suggest a novel scheme for multistep cascaded parametric processes based on a periodically poled nonlinear directional coupler and derive the conditions for simultaneous phase matching of the second-harmonic generation and sum-frequency mixing processes. We predict an efficient wavelength convers...

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Bibliographic Details
Published inOptics letters Vol. 30; no. 17; p. 2284
Main Authors Koynov, Kaloyan, Saltiel, Solomon M, Kivshar, Yuri S
Format Journal Article
LanguageEnglish
Published United States 01.09.2005
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Summary:We suggest a novel scheme for multistep cascaded parametric processes based on a periodically poled nonlinear directional coupler and derive the conditions for simultaneous phase matching of the second-harmonic generation and sum-frequency mixing processes. We predict an efficient wavelength conversion by the cascaded third-harmonic generation from the third optical communication window (1.53-1.56 microm) to visible in a LiNbO3 poled waveguide coupler.
ISSN:0146-9592
DOI:10.1364/OL.30.002284