An optical waveguide bend with enhanced curvature and the optimization of its structure |
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| Authors: | Minoru Sanagi Masamitsu Nakajima |
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| Affiliation: | 1. Department of Electrical and Electronic Engineering, Faculty of Engineering , Okayama University , 3-1-1, Tsushima-Naka, Okayama, 700, Japan;2. Department of Electronics, Faculty of Engineering , Kyoto University Yoshida-Hommachi , Sakyo-ku, Kyoto, 606, Japan |
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| Abstract: | We have investigated a waveguide bend having enhanced curvature with reduced loss. The waveguide width is made wider toward the inner side of the bend. The numerical analysis, by means of the beam propagation method, showed that the loss of the proposed bend is lower than that of an abrupt bend or a smooth bend of constant curvature. For a typical waveguide, we have optimized the structure of the bend and achieved one order of loss reduction in comparison with an abrupt bend of the same angle. |
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