Method and device for manufacturing optical transmission device, and optical transmission device

A device for manufacturing an optical transmission device, comprising:

• a photographic device that photographs at least one of waveguide mirrors, and a transmission-side optical module or a reception-side optical module corresponding to the at least one of the waveguide mirrors, from another side of a substrate via an opening formed in the substrate in a state where a plurality of optical waveguides, the transmission-side optical module and the reception-side optical module are arranged on one side of the substrate, the plurality of optical waveguides including members extending along the one side of the substrate and the waveguide mirrors optically coupled with the members, the transmission-side optical module including a plurality of light sources which emit lights to be transmitted through the plurality of optical waveguides, respectively, the reception-side optical module including a plurality of light receiving elements which receive the lights transmitted through the plurality of optical waveguides, respectively;
• an alignment device that detects optical-axis centers of the transmission-side optical module or optical-axis centers of the reception-side optical module, and central positions of reflective surfaces of the waveguide mirrors corresponding to the optical-axis centers detected, from a result of the photographing of the photographic device, and aligns a position relationship between the waveguide mirrors and the transmission-side optical module or the reception-side optical module on a basis of a result of detection of the optical-axis centers and the central positions;
• and
• a fixation device that fixes the position relationship aligned between the plurality of optical waveguides and the transmission-side optical module or the reception-side optical module on the one side of the substrate to which the transmission-side optical module and the reception-side optical module are electrically and mechanically connected.