Patent ID: 7108432

Claim:
A connection structure for an optical device including a plug provided at one end of an optical transmission medium wherein the plug is attached to a receptacle to thereby achieve an optical coupling between the one end of the optical transmission medium and a specified optical element, the connection structure for an optical device wherein: the plug is equipped with a protruded section extending near a center and along a longitudinal direction of the optical transmission medium, and cut sections provided on both sides of the protruded section, and the receptacle is equipped with a substrate having one surface side on which the plug is mounted, a first positioning member that is provided on the one surface side of the substrate, exposes the protruded section and abuts against the cut sections of the plug for positioning the plug in a thickness direction thereof, and a second positioning member that is provided on the one surface side of the substrate, and abuts against side sections of the plug for positioning the plug in a direction orthogonal to the thickness direction of the plug and the longitudinal direction of the optical transmission medium, respectively.