Foamed tube having free space around ribbon stacks of optical fiber cable
US11880083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4434
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner jacket surface and an outer jacket surface. The outer jacket surface is an outermost surface of the optical fiber cable, and the inner jacket surface defines an internal jacket bore. The optical fiber cable also includes at least one subunit disposed within the internal jacket bore. Each of the at least one subunit includes a foamed tube having an inner subunit surface and an outer subunit surface. The inner subunit surface defines a central subunit bore. Each of the at least one subunit also includes a stack of at least two optical fiber ribbons disposed in the central subunit bore of the foamed tube. Each of the at least two optical fiber ribbons comprising at least two optical fibers. The stack occupies from 85%-95% of a cross-sectional area of the central subunit bore such that the central subunit bore provides from 5% to 15% of free space around the stack along at least a portion of a length of the foamed tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.