Sumitomo Electric Industries, Limited

Kei Sunaga

Toshiaki Kakii

Hidetoshi Ishida

Kenichiro Ohtsuka

Tomohiko Ueda

Wataru Sakurai

Toshifumi Hosoya

Daizo Nishioka

Hiroshi Katsura

Yuko Masunaga

Dai Yui

Takashi Sasaki

Atsushi Inoue

Manabu Shiozaki

Kohei Kobayashi

Teruaki Nishida

Teruo Ikechi

An optical connector ferrule molding diefor molding an optical connector ferrule having a plurality of optical fiber holes comprises an upper diea lower dieand an intermediate diewhereas the intermediate diecomprises a plurality of optical fiber hole forming pinsfor forming optical fiber holes. The lower dieis provided with a protrusionfor forming a window hole of the optical connector ferrule, whereas the optical fiber hole forming pinsprojecting from the intermediate dieare secured by through holespenetrating through the protrusionand V-grooves

Method of making optical connector ferrule, die for making optical connector ferrule, optical connector ferrule made by this method, and optical connector and optical wiring system using the same

Method and metal mold for manufacturing optical connector ferrule, optical connector ferrule manufactured by using the method, and optical connector and optical wiring system using the ferrule

The present invention provides a fiber optic connector comprising a fiber pressing member and a substrate having a part A with multiple fiber arranging grooves in which bare portion of optical fibers are fixed, and a part B in which coated portion of optical fibers are fixed, and its manufacturing method. The connector enables to prevent an increase in transmission loss or breakage of the optical fibers by reducing the localized stress on the fibers from the rear end of the fiber pressing member and the rear end edge of the fiber arranging grooves.

Fiber optic connector and its manufacturing method

The invention has an object to provide a method of making an optical fiber array in which bare fibers obtained by removing a coating of an optical fiber ribbon can be certainly arrayed on a V-groove substrate. A first feature of the invention is to use a positioning guide, and the positioning guide is provided with a recess portion having inclined wall surfaces, and its bottom portion is made to have a width equal to the whole width of the bare fibers in an arrayed state. By using this positioning guide, the optical fiber array can be made in a process as follows. In a state where bare fibers exposed by removing part of coating of tip portions of two fiber ribbons are alternately arranged, the positioning guide is raised from below. The bare fibers with irregular gaps are moved by the positioning guide and are arranged. In this state, the bare fibers are pressed by a fiber pressing member from above, and the V-groove substrate is raised, so that they are put on V grooves and are fixed by an adhesive.

Method of making an optical fiber array and apparatus for making an optical fiber array

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Yokohama, Japan

Kei Sunaga