| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical waveguide capable of suppressing loss or interference in a crossing part and capable of a high quality optical communication, and an optical wiring component and an electronic apparatus which include the optical waveguide.SOLUTION: An optical waveguide 1 includes three layers of a clad layer, a core layer 13 and a clad layer. The core layer 13 includes: two parallel core parts 141, 142(first core parts); a core part 145(a second core part); a crossing part 147; side face clad parts 151, 152 and 153; and low refractive index layers 1491, 1492 which are provided near the crossing part 147. A first refractive index distribution W1 is formed on a cross section of the optical waveguide 1. The refractive index distribution W1 includes: a high refractive index region WH which is in a position corresponding to each of core part 141, 142 and 145, and of which refractive index is relatively high; and a low refractive index region WL which is in a position corresponding to each of side face clad parts 151, 152 and 153, and of which refractive index is lower than the one of the high refractive index region WH. The refractive index distribution W1 is obtained by continuously varying in the refractive index as a whole. |
