Three-dimensional simulation of guided-wave second-harmonic generation in the form of coherent Cerenkov radiation.
We implement a direct three-dimensional calculation of Cerenkov-radiation-type frequency doubling in an optical channel waveguide by using a finite-element guided-beam simulator. The simulator can predict an optimum configuration and the conversion efficiency of miniaturized frequency doublers that utilize guided-to-radiation-mode interactions in nonlinear channel waveguides. Computed results are shown for blue-light generation through the frequency doubling in a proton-exchanged MgO:LiNbO(3) channel waveguide.
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K
Hayata
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Koshiba