Abstract

Room-temperature cw second-harmonic generation from telecom wavelengths, with $30\%{\mathrm{W}}^{-1}{\mathrm{cm}}^{-2}$ efficiency and second-harmonic power levels up to $41\mathrm{mW}$, 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

Guided-wave second-harmonic generation in a LiNbO₃ nonlinear photonic crystal

Katia Gallo, Christophe Codemard, Corin B. Gawith, Johan Nilsson, Peter G. R. Smith, Neil G. R. Broderick, and David J. Richardson
Opt. Lett. 31(9) 1232-1234 (2006)

Reverse-proton-exchange in stoichiometric lithium tantalate

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V. Z. Kolev, M. W. Duering, and B. Luther-Davies
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