Characteristics of Ti-indiffused waveguides in MgO-doped LiNbO ₃

Abstract

Diffusion parameters are determined from prism coupler measurements on optical waveguides formed by Ti diffusion in LiNbO3 doped with 5% MgO. The diffusion coefficient is 3–4 times smaller than for similar waveguides in undoped LiNbO3. The Ti depth profile is shown to be Gaussian by SIMS analysis.