MULTICORE OPTICAL FIBER AND METHOD OF PRODUCING MULTICORE OPTICAL FIBER

MULTICORE OPTICAL FIBER AND METHOD OF PRODUCING MULTICORE OPTICAL FIBER

A multicore optical fiber that includes: a core that is formed of silica glass doped with at least fluorine, the core having a relative refractive index difference with respect to a refractive index of silica as a reference being −0.30% to −0.10%; and a clad that is formed of silica glass doped with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Shimomichi, Tsuyoshi, Toriya, Tomoaki, Izoe, Katsuaki, Kudoh, Manabu, Endoh, Yutaka
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A multicore optical fiber that includes: a core that is formed of silica glass doped with at least fluorine, the core having a relative refractive index difference with respect to a refractive index of silica as a reference being −0.30% to −0.10%; and a clad that is formed of silica glass doped with at least fluorine. The clad includes a first clad surrounding an outer periphery of the core and a second clad provided outside the first clad. A relative refractive index difference between the first clad and the core is 0.8% or more. A refractive index of the second clad is higher than a refractive index of the first clad and lower than a refractive index of the core.