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Soft proton exchanged channel waveguides in congruent lithium tantalate for frequency doubling

  • Autori: Busacca, A.; Stivala, S.; Curcio, L.; Minzioni, P.; Nava, G.; Cristiani, I.; Assanto, G.
  • Anno di pubblicazione: 2010
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Nonlinear optics, Integrated optics materials, Waveguides, Nonlinear optical devices
  • OA Link:


We report on stable optical waveguides fabricated by soft-proton exchange in periodically-poled congruent lithium tantalate in the α-phase. The channel waveguides are characterized in the telecom wavelength range in terms of both linear properties and frequency doubling. The measurements yield a nonlinear coefficient of about 9.5pm/V, demonstrating that the nonlinear optical properties of lithium tantalate are left nearly unaltered by the process.