公开(公告)号：US10222559B2

公开(公告)日：2019-03-05

申请号：US15560852

申请日：2016-01-29

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Shigeo Takahashi ,  Tatsuya Ota

IPC: G02B6/38 ,  G02B6/32 ,  G02B6/36 ,  G02B6/44

Abstract: A ferrule holds end portions of optical fibers and includes: a plurality of optical fiber holes arranged in a predetermined direction, wherein the optical fibers are inserted into the plurality of optical fiber holes; and an adhesive-filling section that is filled with an adhesive and internally includes an opening surface of the plurality of optical fiber holes and an opposed surface opposed to the opening surface. The adhesive-filling section includes an upper side opening and a lower side opening, the upper side opening opens on a top surface that is a surface on a side from which the adhesive is filled, and the lower side opening opens on a lower surface that is a surface on a side opposite to the top surface.

公开(公告)号：US10605997B2

公开(公告)日：2020-03-31

申请号：US15553526

申请日：2016-02-12

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Tatsuya Ota

IPC: G02B6/38 ,  G02B6/32

Abstract: An optical-fiber-attached ferrule of the invention includes: an optical fiber; and a ferrule that holds an end portion of the optical fiber, where the ferrule includes a ferrule end surface, a fiber hole to insert the optical fiber, an adhesive-filling section that includes an opening surface of the optical fiber hole and an opposed surface opposed to the opening surface, and a light transmitting part that transmits an optical signal between the ferrule end surface and the opposed surface, and an end surface of the optical fiber is disposed close to the opposed surface in the adhesive-filling section The adhesive-filling section is filled with an optical adhesive with Shore hardness D of equal to or less than 50.

公开(公告)号：US20180017738A1

公开(公告)日：2018-01-18

申请号：US15553526

申请日：2016-02-12

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Tatsuya Ota

IPC: G02B6/38

CPC classification number: G02B6/3861 ,  G02B6/32 ,  G02B6/382 ,  G02B6/3821 ,  G02B6/3853 ,  G02B6/3885

Abstract: An optical-fiber-attached ferrule of the invention includes: an optical fiber; and a ferrule that holds an end portion of the optical fiber, where the ferrule includes a ferrule end surface, a fiber hole to insert the optical fiber, an adhesive-filling section that includes an opening surface of the optical fiber hole and an opposed surface opposed to the opening surface, and a light transmitting part that transmits an optical signal between the ferrule end surface and the opposed surface, and an end surface of the optical fiber is disposed close to the opposed surface in the adhesive-filling section The adhesive-filling section is filled with an optical adhesive with Shore hardness D of equal to or less than 50.

公开(公告)号：US20180120516A1

公开(公告)日：2018-05-03

申请号：US15560852

申请日：2016-01-29

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Shigeo Takahashi ,  Tatsuya Ota

IPC: G02B6/38

CPC classification number: G02B6/3853 ,  G02B6/32 ,  G02B6/36 ,  G02B6/3821 ,  G02B6/3833 ,  G02B6/3861 ,  G02B6/3867 ,  G02B6/3882 ,  G02B6/3885 ,  G02B6/3887 ,  G02B6/4214 ,  G02B6/4403

Abstract: A ferrule holds end portions of optical fibers and includes: a plurality of optical fiber holes arranged in a predetermined direction, wherein the optical fibers are inserted into the plurality of optical fiber holes; and an adhesive-filling section that is filled with an adhesive and internally includes an opening surface of the plurality of optical fiber holes and an opposed surface opposed to the opening surface. The adhesive-filling section includes an upper side opening and a lower side opening, the upper side opening opens on a top surface that is a surface on a side from which the adhesive is filled, and the lower side opening opens on a lower surface that is a surface on a side opposite to the top surface.

公开(公告)号：US09933581B2

公开(公告)日：2018-04-03

申请号：US15300494

申请日：2015-03-31

Applicant: FUJIKURA LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takaharu Matsuda ,  Hung Huu Luong ,  Tatsuya Ota ,  Kazuhiro Takizawa ,  Hiroichi Katayose ,  Koji Ishizuka ,  Makoto Shinpo ,  Kunihiro Toge

IPC: G02B6/36 ,  G02B6/38 ,  G02B6/44

CPC classification number: G02B6/382 ,  G02B6/3806 ,  G02B6/3821 ,  G02B6/3846 ,  G02B6/3881 ,  G02B6/443 ,  G02B6/4471

Abstract: An optical fiber splicer includes a fiber fixing portion, a first optical fiber fixed to the fiber fixing portion, a clamp portion which is capable of holding and fixing an extending portion extended from the fiber fixing portion of the first optical fiber and a tip portion of a second optical fiber optically connected to the extending portion of the first optical fiber between a base member and a pressing member being openable and closable with respect to the base member, and a solid index matching material which is attached to a tip surface of the extending portion of the first optical fiber and is interposed between the first optical fiber and the second optical fiber.