Method of sealing air holes in an optical fiber

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8800323
APP PUB NO 20080250816A1
SERIAL NO

12073412

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An optical fiber which, at an optical fiber connecting end having a plurality of voids around the periphery of a core, has a light-permeable substance, such as a resin or glass whose refractive index is lower than that of quartz type substances, filled in the voids adjacent to the connecting end. An optical fiber connecting section where an optical fiber having a plurality of voids in a clad around the periphery of a core is connected to another optical fiber, wherein the optical fiber is connected end-to-end to aforesaid another optical fiber through a refractive index matching agent whose refractive index at the minimum temperature in actual use is lower than that of the core.

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Patent Owner(s)

  • HITACHI METALS, LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Araki, Eiji Tokyo, JP 14 89
Hiramatu, Katumi Tokyo, JP 4 48
Kurashima, Toshio Tokyo, JP 15 132
Kurosawa, Yoshinori Tokyo, JP 15 149
Nakai, Hisanori Tokyo, JP 4 40
Ohsono, Kazumasa Tokyo, JP 22 196
Tachikura, Masao Tokyo, JP 21 289
Yao, Bing Tokyo, JP 45 305

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