A resonance phenomenon for nonlinear frequency conversion in a directional coupler can be explained by a driven harmonic-oscillator model. We present this model and extend it to obtain the conditions necessary for efficient third-harmonic generation.
© 2005 Optical Society of America
(130.0130) Integrated optics : Integrated optics
(130.4310) Integrated optics : Nonlinear
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
P. Dong and A. G. Kirk, "Nonlinear Optical Harmonic Oscillator Results in Efficient Frequency Conversion," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CFL7.
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