CONNECTION STRUCTURE OF OPTICAL FIBER AND ITS MANUFACTURE

PURPOSE:To provide the connection structure of optical fibers which increases the performance of a connection between different mode optical fibers, i.e., a multi-mode optical fiber and a single-mode optical fiber. CONSTITUTION:When the multi-mode optical fiber 1 and single-mode optical fiber 2 are...

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Main Authors KOBAYASHI KOICHI, OTA IKUO, HAYAKAWA KOICHI, IZUTSUI SHINTARO, HASEMI AKIO, KINOSHITA KAZUTAKA, NUMANOI TAKEO
Format Patent
LanguageEnglish
Published 27.05.1994
Edition5
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE:To provide the connection structure of optical fibers which increases the performance of a connection between different mode optical fibers, i.e., a multi-mode optical fiber and a single-mode optical fiber. CONSTITUTION:When the multi-mode optical fiber 1 and single-mode optical fiber 2 are connected, the core 2a of the single-mode optical fiber 2 which has a smaller core diameter than the core 1a of the multi-mode optical fiber 1 is heated to thermally diffuse a core dopant and the mode field diameter of the single-mode optical fiber 2 is increased almost to the mode field diameter of the multi-mode optical fiber 1. Consequently, a light signal which is suppressed in power distribution variation of light intensity is made incident on the single-mode optical fiber 2 from the multi-mode optical fiber 1.
Bibliography:Application Number: JP19930160278