18814864. OPTICAL FIBER AND OPTICAL CABLE (SUMITOMO ELECTRIC INDUSTRIES, LTD.)

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OPTICAL FIBER AND OPTICAL CABLE

Organization Name

SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor(s)

Kazuyuki Sohma of Osaka (JP)

Takahiro Nomura of Osaka (JP)

Keisei Morita of Osaka (JP)

Satoshi Ogawa of Osaka (JP)

OPTICAL FIBER AND OPTICAL CABLE

This abstract first appeared for US patent application 18814864 titled 'OPTICAL FIBER AND OPTICAL CABLE



Original Abstract Submitted

A primary resin layer has a thickness of 4 μm or more and Young's modulus of 0.3 MPa or less. A secondary resin layer has a radius of 85 μm or less, a thickness of 7.5 μm or more, and Young's modulus of 1250 MPa or more. A MFD of an optical fiber at a wavelength of 1310 nm is greater than 8.2 μm, and the MFD at a wavelength of 1550 nm is 9.40 μm or more and 10.5 μm or less. Relative ratio of D/H, which indicates the relationship between lateral rigidity D and bending rigidity H of the optical fiber, to a reference 200 μm single fiber is 540 or less. A cross-sectional area of the coating layer that excludes the primary resin layer is 4400 μmor more and 12000 μmor less. The optical fiber has a zero-dispersion slope of 0.092 ps/nm/km or less.