We report on first experimental results on UltraViolet second-harmonic generation by first-order quasiphase-matching in a surface periodically poled proton exchanged Lithium Tantalate waveguide. We have achieved a good compatibility with alpha phase proton exchanged channel waveguides in Lithium Tantalate. We held the sample in a temperature controlled oven kept at a constant temperature of 250 °C, to reduce photorefractive damage. The pump source was a Ti-Sapphire laser with a tunability range of 700 - 980 nm and a 40-GHz linewidth. Continuous wave UV light at 365.4 nm was produced with a conversion efficiency of 6.6% W-1cm-2.
BUSACCA AC, D'ASARO E, RIVA SANSEVERINO S, CINO A C, ASSANTO G (2008). Quasi phase matched UV second harmonic generation in Lithium Tantalate soft PE waveguides. In First Mediterranean Photonics Conference (pp.227-229). Napoli : Edizioni Giorgio Lieto.
Quasi phase matched UV second harmonic generation in Lithium Tantalate soft PE waveguides
D'ASARO, Elena;RIVA SANSEVERINO, Stefano;CINO, Alfonso Carmelo;BUSACCA, Alessandro
2008-01-01
Abstract
We report on first experimental results on UltraViolet second-harmonic generation by first-order quasiphase-matching in a surface periodically poled proton exchanged Lithium Tantalate waveguide. We have achieved a good compatibility with alpha phase proton exchanged channel waveguides in Lithium Tantalate. We held the sample in a temperature controlled oven kept at a constant temperature of 250 °C, to reduce photorefractive damage. The pump source was a Ti-Sapphire laser with a tunability range of 700 - 980 nm and a 40-GHz linewidth. Continuous wave UV light at 365.4 nm was produced with a conversion efficiency of 6.6% W-1cm-2.
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