Graded-index multimode fiber and manufacturing method therefor

Optical waveguides – Optical fiber waveguide with cladding – With graded index core or cladding

Reexamination Certificate

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C385S123000, C385S125000, C385S126000, C385S142000, C385S144000, C065S419000, C264S001240

Reexamination Certificate

active

07406235

ABSTRACT:
A graded-index multimode fiber includes a core made of silica glass, the core having a central region and an outer peripheral region, and a cladding which is provided at an outer periphery of the core. The central region contains one of germanium and phosphorus, and the outer peripheral region contains fluorine.

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