Abstract
The parameters of proton-exchange waveguide H: LiNbO3 layers and doubly doped H: Ti: LiNbO3 layers were comparatively analyzed by x-ray diffractometry and optical mode spectroscopy. It was established that the change in the lattice parameter in hybrid H: Ti: LiNbO3 layers is significantly smaller than that in proton-exchange H: LiNbO3 layers formed under the same proton exchange conditions. The behavior of the optical and structural parameters of H: Ti: LiNbO3 layers was studied in a wide hydrogen concentration range.
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