| 摘要 |
PURPOSE:To constitute a compact optical circuit device by arranging a base substrate and plural circuit substrates which have optical waveguides respectively at right angles, coupling the optical waveguides by an optical coupling means, and constituting the optical circuit device in three dimensions. CONSTITUTION:An optical waveguide 11 having a photodetecting element 16 and an optical waveguide 15 having a light emitting element 12 are formed on the base substrate 10. Then, and optical waveguide 21 which has light emitting element 22 and an optical processing part 23 and an optical waveguide 25 which has a photodetecting element 26 and an optical processing part 27 are formed on a circuit substrate 20. Then, the base substrate 10 and circuit substrate 20 are arranged at right angles. The optical waveguide 21 is extended to an end surface 20a where the circuit substrate 20 contacts the base substrate 10 to form an optical waveguide part 21a and also form a slanting surface 24. Light propagated in the optical waveguide 21 is reflected totally by the slanting surface 24 and propagated from the optical waveguide part 21a to an optical waveguide 11. Consequently, the constitution of the optical circuit device is made compact by arranging plural circuit substrates 20-40 in three dimensions. |
