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SEM image of patterned STO films.
Structure of the ridge waveguide.
Top-view image of the light scattered from the ridge waveguide.
End-view image of the light scattered from the ridge waveguide: (a) fundamental mode and (b) higher-order mode .
Losses as a function of ridge width obtained from top-view scattering and Fabry-Perot resonance techniques. Losses obtained in a planar STO waveguide using the prism coupling method are also shown for comparison.
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