Quasi periodic modulation of the nonlinear coefficient enables to phase match any arbitrary set of 3-wave mixing processes. Multi-wavelength and multi-directional doubling are experimentally demonstrated in one- and two-dimensional quasi-periodically poled ferroelectric crystals.
© 2008 Optical Society of America
A. Arie, "Quasi Phase Matching with Quasi-Periodic Poling," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper QTuC3.
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