Abstract

Efficient Type II phase-matching second-harmonic generation of a 1125nm fundamental beam has been obtained using Ba:Yb:Nb:RbTiOPO4/RbTiOPO4 waveguides grown by liquid phase epitaxy. The refractive indices of the epitaxial layer have been measured at different wavelengths, and the Sellmeier coefficients of the chromatic dispersion curves have been obtained. The phase-matching curve shows that the Ba2+ doping in RbTiOPO4 contributes to increase the phase-matching range until 900nm. The measured effective refractive indices of the propagation modes agree well with the theoretical calculations.

© 2011 Optical Society of America

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