High density optical cables

US11796750B2 · kind B2 · utility

Assignee

• Prysmian S.p.A. · IT

Inventors

• Ben H. Wells · Irmo, US
• Ehsan Fallahmohammadi · Milano, IT
• Brian G. Risch · Granite Falls, US
• Clint Nicholaus Anderson · Lexington, US
• John R. Sach · Lexington, US
• Jeffrey Scott Barker · Hickory, US

Key dates

• Filing date: Jan 31, 2022
• Grant date: Oct 24, 2023
• Expiry date: Jan 31, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4434
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical cable includes a plurality of buffer tubes and an outer jacket surrounding the plurality of buffer tubes. Each of the plurality of buffer tubes includes a buffer tube jacket surrounding a plurality of flexible ribbons. The buffer tube jacket includes a first deformable material that has undergone permanent plastic deformation during formation of the optical cable to conform to an irregular axial cross-sectional shape of each respective plurality of flexible ribbons. Each flexible ribbon includes a plurality of optical fibers and a first longitudinal length. For each flexible ribbon, each optical fiber of the plurality of optical fibers is attached to an adjacent optical fiber of the plurality of optical fibers along a bond region comprising a second longitudinal length that is less than the first longitudinal length.