Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuhiro Yonezawa0
Sumio Hoshino0
Date of Patent
May 12, 2015
0Patent Application Number
134664140
Date Filed
May 8, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a GI-type multi-mode optical fiber in which the outer diameter of the core is 47.5 to 52.5 μm or 60 to 65 μm, or to a bend resistant multi-mode optical fiber provided with resistance against property fluctuation caused by the bending of the multi-mode optical fiber by providing a trench portion having a low refractive index at the outer periphery of the core. In the multi-mode optical fiber, both the maximum tensile stress and the maximum compressive stress in the optical axis direction remaining in the core are 50 MPa or less.
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