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Planar optical waveguide, method for manufacturing the same and polymer optical waveguide
Planar optical waveguide, method for manufacturing the same and polymer optical waveguide
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机译:平面光波导,其制造方法以及高分子光波导
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摘要
A planar optical waveguide includes a layered film formed on a substrate, and an optical waveguide core formed in the layered film. A cross section of the optical waveguide core is substantially quadrilateral, and a dopant layer including refractive index-lowering molecules is provided around the optical waveguide core. The refractive index-lowering molecules included in the dopant layer are unevenly distributed in the optical waveguide core with a concentration that is higher toward outer sides and corners of the optical waveguide core, whereby a graded-index optical waveguide is constituted.
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