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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CTuW13

Optimization of annealed proton- exchanged LiNbO3 channel waveguides for nonlinear frequency conversion

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Proton exchange in LiNbO3 is attractive for fabrication of guided-wave photonic devices. For applications such as nonlinear frequency conversion, anealed proton-exchanged (APE) waveguides have a distinct advantage over their titanium-indiffused counterparts because of their higher photorefractive damage threshold.1 It has been reported2 that stable, low-loss waveguides with restored electro-optic coefficients can be obtained by annealing the proton-exchanged guides. We have shown3 that second-harmonic generation (SHG) coefficients can also be restored by annealing.3

© 1991 Optical Society of America

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