公开(公告)号：US20240176071A1

公开(公告)日：2024-05-30

申请号：US18283764

申请日：2022-03-30

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Junji ARAI ,  Yumi MURATA ,  Yuki KUGIMOTO

IPC: G02B6/122 ,  G02B6/12

CPC classification number: G02B6/122 ,  G02B2006/12142

Abstract: Provided is an optical waveguide element whereby it is possible to prevent dropout of an optical component due to internal stress that occurs in a joint between the optical component and an optical waveguide member including a substrate on which an optical waveguide is formed, and to simplify a manufacturing step pertaining to polishing of a joining surface. An optical waveguide element comprising: an optical waveguide member including a substrate 1 on which an optical waveguide is formed; and an optical component 3 that is fixed to an optical waveguide member end surface (B0) on which an input part or an output part of the optical waveguide is disposed, and that transmits input light inputted to the input part or transmits output light outputted from the output part, wherein the optical waveguide element is characterized in that portions (B1, B2) having greater roughness than the end surface (B0) of the optical waveguide member including the input part or the output part are provided in at least a portion of the optical waveguide member, which is the portion thereof to which the optical component 3 is fixed.

公开(公告)号：US20250155637A1

公开(公告)日：2025-05-15

申请号：US18840692

申请日：2022-02-28

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Yumi MURATA ,  Junji ARAI ,  Yuki KUGIMOTO

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/14 ,  G02F1/035

Abstract: An object of the present invention is to provide an optical waveguide device capable of appropriately setting a positional relationship between an optical waveguide substrate and a reinforcing member. An optical waveguide device includes an optical waveguide substrate 11 provided with an optical waveguide 10; and a reinforcing member 2 disposed on an upper side of the optical waveguide near an end portion of the optical waveguide, the optical waveguide substrate and the reinforcing member being joined through an adhesive layer 3, in which spacers (SP1, SP2) are disposed between the optical waveguide substrate and the reinforcing member to interpose the optical waveguide between the spacers.