| 摘要 |
In an optical waveguide having plural cores including a pair of adjacent cores with an identical core structure, a minimum value D of center-center distance between the adjacent cores is 15 µm to 60 µm, each of the plural cores has a bent portion fixed in a radius of curvature R b of not more than 7 mm, a bend supplementary angle of the bent portion is 58° to 90°, a height of the optical waveguide is defined as a height of not more than 10 mm, and a crosstalk of the adjacent cores is not more than 0.01. |
