Low attenuation optical fiber cable with small sized active particles

US10620393B2 · kind B2 · utility

Assignee

• CORNING OPTICAL COMMUNICATIONS LLC · US

Inventors

• Dana Craig Bookbinder · Corning, US
• Anne Germaine Bringuier · Taylorsville, US
• Donald Kennedy Hall · Mooresville, US
• Inna Igorevna Kouzmina · Corning, US
• Ming-Jun Li · Horseheads, US
• David Alan Seddon · Hickory, US
• Pushkar Tandon · Corning, US
• Ruchi Tandon · Corning, US

Key dates

• Filing date: May 30, 2019
• Grant date: Apr 14, 2020
• Expiry date: May 30, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4436
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A low attenuation optical cable is provided. The cable includes an outer cable jacket and at least one buffer tube surrounded by the cable jacket. The cable includes a plural number of optical fibers located within the channel of the at least one buffer tube. The cable includes small sized active particles located within the buffer tube, and an average maximum outer dimension of the active particles within the buffer tube is ≤50 microns. The small sized active particles reduce microbending-based attenuation otherwise seen with larger sized active particles, particularly within densely packed buffer tubes.