| 摘要 |
PURPOSE:To form a nonreflective hard phi coat by inserting an optical fiber fixedly in the hole of a center part, and finishing one end optically to an optical coating treated surface and making other end side into an optical fiber connector. CONSTITUTION:A ferrule 2 constituting the optical fiber connector is cylindrical and an adaption hole 3 where the optical fiber 1 is inserted is formed at its center part; and the optical fiber 1 is inserted into the hole 3, which is charged with a heat-resistive adhesive 4 to fix the fiber. An end surface of the optical fiber 1 is almost aligned with one end 5 of the ferrule 2 and the other end side 6 projects by proper length. In this state, the end surface 5 is polished and finished selectively and optically into a recessed surface which is perpendicular to the optical axis or slants properly to a perpendicular surface. Further, an optical coating 7 such as a light-nonreflective coating, a transmission increasing coating, and a light wavelength selectable transmissive coating is vapor-deposited on the end surface 5. The coating 7 is vapor-deposited under sufficient conditions while the whole optical fiber 1 is stored in a vapor-depositing device because it is adequately long, so that the hard phi coat is formed. |
