6533b838fe1ef96bd12a4de8

RESEARCH PRODUCT

Quasi Phase Matched UV Second Harmonic Generation in Lithium Tantalate soft PE Waveguides

Elena D'asaroStefano Riva SanseverinoAlfonso Carmelo CinoAssanto G.Alessandro Busacca

subject

second harmonic generationLithium Tantalatesurface periodic poling

description

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.

yearjournalcountryeditionlanguage
2008-01-01
https://hdl.handle.net/11590/271156