Abstract
The acousto-optic control of light in Zn-diffused LiNbO3 optical waveguides is demonstrated. The guided optical mode diffraction by the surface acoustic waves is consistent with the Klein and Cook model for the intermediate diffraction regime. The SAW induced refractive index change is 1.5×10−4 at acoustic power 130 mW. The Zn-diffused lithium niobate waveguides appear to be good candidates for integrated light-control devices based on acousto-optic interaction.
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