Invention Grant
US08824836B2 Optical waveguide, optical modulator and optical coupler 有权
光波导,光调制器和光耦合器

Optical waveguide, optical modulator and optical coupler
Abstract:
An optical waveguide formed in a substrate including: a curved waveguide; and a splitter that is coupled to the curved waveguide and branches, wherein a low refraction index portion having an effective refraction index that is lower than that of a start point of the curved waveguide on an opposite side of the splitter is provided in a waveguide extending from the start point of the curved waveguide to the splitter.
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