Yue ZHOU, Yaohui SUN, Haoyu WU, Mengjia LU, Guohua HU, Binfeng YUN, Yiping CUI. Design of Low Loss Silicon Waveguide Bend with Width and Curvature Variations[J]. Acta Photonica Sinica, 2023, 52(8): 0823002
- Acta Photonica Sinica
- Vol. 52, Issue 8, 0823002 (2023)
Fig. 1. Mathematical model of Euler bend
Fig. 2. Mathematical model of Euler-circular bend
Fig. 3. Structure diagram of bent optical waveguide I（inner curve：Circular bend，outer curve：Euler-circular bend）
Fig. 4. Structure diagram of bent optical waveguide Ⅱ（inner curve：Euler-circular bend，outer curve：Euler bend）
Fig. 5. Relationship between wmax and loss of Ⅰ-Ⅱ in bent optical waveguide
Fig. 6. Relation curve between bending loss and R0
Fig. 7. Electric field distribution of bent optical waveguide
Fig. 8. Diagram of loss and wavelength in a single mode bent optical waveguide
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Table 1. Optimum wmax values of bent optical waveguides Ⅰ and Ⅱ with different R0
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Table 2. Loss of silicon-based single mode bent optical waveguide
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