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Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides

Giuseppe Leo, Antonio Amoroso, Lorenzo Colace, Gaetano Assanto, Rostislav V. Roussev, and Martin M. Fejer

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Abstract

Combining reverse proton exchange and uniform periodic poling in LiNbO3 planar waveguides, we demonstrate low-energy spatial optical solitons by second-harmonic generation at room temperature, with a threshold as low as 23 pJ/µm at 1.5 µm.

© 2004 Optical Society of America

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