0000000000024497
AUTHOR
Assanto G.
UV Generation in lithium niobate proton exchanged optical waveguides
UV Generation in Surface Periodically Poled Lithium nimbate Proton Exchanged Optical Waveguides
UV quasi-phase-matched second harmonic in LiTaO3 channel waveguide
Guide a scambio protonico in Tantalato di Litio stabili nel tempo
Ultraviolet quasi-phase-matched second harmonic generation in surface periodically poled Lithium Niobate optical waveguides
Quasi Phase Matched UV Second Harmonic Generation in Lithium Tantalate soft PE Waveguides
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.