Abstract

Room-temperature cw second-harmonic generation from telecom wavelengths, with 30%W1cm2 efficiency and second-harmonic power levels up to 41mW, was achieved in buried waveguides fabricated by reverse-proton exchange in 1% MgO-doped stoichiometric lithium tantalate without any evidence of optical damage. The technology proves suitable for the realization of efficient nonlinear frequency converters and all-optical devices.

© 2006 Optical Society of America

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