Injection molded fiber-optic connector components for single-mode fiber applications

We successfully fabricated plastic ferrules and split alignment sleeves for single-mode fiber-optic connectors by the injection molding process. Liqui d crystalline polymer (LCP) was used as the molding material for the ferrul e. We introduced an eccentricity control mechanism into the ferrule mold an d realized an eccentricity of less than 1 mu m As the molding material For the sleeve, thermosetting epoxy resin was used. Suitable mechanical propert ies were realized by employing appropriate dimensional design and the moldi ng process. The optical characteristics of a system combining these plastic components are compatible with single-mode SC-type connectors and are also stable under hot and humid conditions.