Wistron Corporation

Yung-Jr Hung

Cheng-Hsuan Wu

A broadband ring resonator includes a first waveguide and a second waveguide. The first waveguide is a closed loop having a first coupling section having a first width and a first curvature radius. The second waveguide includes a first section, a second coupling section, and a second section which are connected in sequence. The second coupling section has a second width and a second curvature radius. Coupling ratios of the second waveguide coupled to the first waveguide within a broadband have a similarity to each other. A coupling angle is respectively between two ends of the first coupling section and between two ends of the second coupling section, and the first and second coupling sections are separated by a coupling gap. The second curvature radius is greater than the first curvature radius. A ratio of the first width with respect to the second width ranges from 1.3 to 1.7.

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Taipei, Taiwan

Yung-Jr Hung