| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical waveguide module for optical device capable of suppressing the loss of an optical waveguide and reducing the cost of an optical device. SOLUTION: An optical transmission/reception module 1 as the optical device is provided with this optical waveguide module 2 for disposing an LD 5 and PDs 6a and 6b. The optical waveguide module 2 is provided with a substrate member 3 and a waveguide device 4. In the substrate member 3, the LD 5 and the PDs 6a, 6b are connected to an electrode part 12 provided on a first reference surface 9 consisting of the flat surface of a substrate material 7 and a recessed part 10 or the like is provided. The waveguide device 4 is provided with the optical waveguide 20 formed on the flat surface 20a of a substrate 20 and a height adjustment film 22 and covering the optical waveguide 20. The part along the surface 20a of the height adjustment film 22 is a second reference surface 29. At the time of putting the optical waveguide 21 in the recessed part 10, the optical axis of the main core 26 of the optical waveguide 21 and the optical axis of the LD 5 are positioned on the same plane. |
