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Integrated frequency shifter in periodically poled lithium tantalate waveguide

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


A frequency shifting device is fabricated and tested in a ferroelectric waveguide in a low-photorefractivity crystal. Periodic poling for quasi-phase-matching and channels for operation in the near-infrared C-band were obtained in congruent lithium tantalate, demonstrating for the first time both wave confinement and two-stage parametric conversion in such waveguides.