Buried slab waveguides in LiNbO/sub 3/ nonlinear photonic crystals

Abstract

We present an efficient integrated device for SHG at telecom wavelengths in hexagonally poled LiNbO/sub 3/, based on the reverse proton exchange waveguide technology. We discuss its nonlinear response in terms of power, wavelength and angle tunability and use the experimental SHG data to infer also information on the linear properties of the waveguide.