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Ultraviolet generation in periodically poled Lithium Tantalate waveguides

  • Autori: Busacca, A.; D'Asaro, E.; Pasquazi, A.; Stivala, S.; Assanto, G.
  • Anno di pubblicazione: 2008
  • Tipologia: Articolo in rivista
  • OA Link:


We demonstrate ultraviolet generation in lithium tantalate channel waveguides for frequency doubling via quasi-phase-matching. The samples, proton exchanged and nanostructured by electric-field assisted surface periodic poling with domains as deep as 40 μm, yield continuous wave light at 365.4 nm with conversion efficiencies larger than 7.5% W-1 cm-2.