Abstract
Silica–titania waveguide films were fabricated via the sol–gel method using dip-coating technique. Chemical uniformity, surface morphology, thickness and refractive index as well as optical transmission losses were investigated. The investigations show, that fabricated silica–titania waveguide films of high refractive index (~1.8) are uniform, very smooth (rms~0.298nm) and exhibit ultra low optical transmission losses (below 0.2dB/cm), constancy through over five years.
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