Sumitomo Osaka Cement Co., Ltd.

Masaru Shiroishi

Hirotoshi Nagata

Tsutomu Saito

Takashi Tateyama

Mithuru Sakuma

Katsutoshi Kondou

Susumu Murata

Ryosuke Kaizu

Nobuhide Miyamoto

Kazuhiro Ooto

Naoki Kougo

To provide an optical device sealing structure capable of simply sealing an optical fiber inserting portion. Provided is a structure that seals an optical device including a metallic case having an optical element disposed therein and an optical fiber inserted through a through hole of the case, wherein a Zn-containing surface is formed on a surface of a bare fiber portion that is formed by partly removing a coating of the optical fiber so as to expose a bare fiber, and wherein an Sn-containing sealing material is charged between the Zn-containing surface and an inner wall of the through hole.

Optical device sealing structure and optical device manufacturing method

An optical element-optical fiber composite structure having a high resistance of the optical fiber to breakage due to cyclical change in temperature, includes a package structure having a main container, side containers attached to the main container and sleeves through which a main chamber of the main container is connected to side chambers of the side containers; an optical element housed in the main chamber; and optical fibers introduced into the main chamber through the side chambers and the sleeves and connected to the optical element.

Package structure for optical element and fibers and composite structure

Growing community of inventors

Funabashi, Japan

Masaru Shiroishi