A robust single-pulse poling recipe is demonstrated for thin-film lithium tantalate, and a pole-after-etch ridge waveguide converts 1550 nm to 775 nm with 208 %W^-1 cm^-2 normalized efficiency.
Zhang , author C
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Robust Poling and Frequency Conversion on Thin-Film Periodically Poled Lithium Tantalate
A robust single-pulse poling recipe is demonstrated for thin-film lithium tantalate, and a pole-after-etch ridge waveguide converts 1550 nm to 775 nm with 208 %W^-1 cm^-2 normalized efficiency.