Interference filters which are optical components are erected in advance
on optical paths in a transparent container, and the transparent container is filled
with a photo-curable resin solution. Further, a jig is prepared for manufacturing
an optical waveguide device. The jig includes a housing, and holes. On this occasion,
positions of the holes are set such that light input through the hole reaches the
holes via the interference filters. Optical fibers are fitted into the holes of
the housing and the housing is mounted on the transparent container. Next, light
at a predetermined wavelength is guided into the optical fibers so that optical
waveguides are formed in the photo-curable resin solution. Next, the photo-curable
resin solution is exchanged for a low-refractive-index photo-curable resin solution
and then the low-refractive-index photo-curable resin solution is solidified wholly
by ultraviolet light. Finally, for example, an optical fiber, a light-receiving
element, etc. are provided.
