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A Novel Configuration for Phase-Matched Second-Harmonic Generation in LiNbO3 Waveguides

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6 Author(s)

We present a feasibility study of a novel technique for continuously phase-matched second-harmonic generation in proton-exchanged lithium niobate waveguides. We demonstrate that a periodic variation of the nonlinear coefficient along the transverse direction with respect to the propagation one permits for efficient conversions. Comparison with the conventional first-order quasi-phase-matching interactions are then presented in front of unavoidable imperfections of real devices whenever Czochralski off-center technique is exploited in the fabrication process

Published in:

IEEE Photonics Technology Letters  (Volume:19 ,  Issue: 8 )