Optical repeater and optical connector device

An optical connector device comprising:

• a substrate;
• an optical connector;
• and
• an optical repeater to be arranged between the substrate and the optical connector,
• wherein the optical repeater includes
• a body part including a plurality of optical paths to transmit an optical signal between the substrate and the optical connector, a substrate-side end-face in which one end of each of the optical paths opposes the substrate, and a connector connecting part to connect another end of each of the optical paths to the optical connector, the body part being configured from a material with a greater coefficient of linear expansion than that of the substrate, and
• a reinforcing member arranged so as to surround the optical paths in a side to the substrate-side end-face, the reinforcing member being configured from a material with a smaller coefficient of linear expansion than that of the body part.