Fiber optic cable having buffer tubes with optical fiber bundles therein and method for making same
US5345526A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Feb 11, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4482
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic cable and method for making the cable includes a plurality of buffer tubes positioned around a central member with three levels of color coding to enhance identification of individual optical fibers within the cable. Each of the buffer tubes has a predetermined color for identifying each individual buffer tube from the other buffer tubes, and a plurality of optical fibers are positioned within each buffer tube and arranged in a plurality of optical fiber bundles within each buffer tube. Each optical fiber bundle includes a binder yarn surrounding respective ones of the optical fibers with each of the binders having a predetermined color for identifying each individual optical fiber bundle from the other optical fiber bundles within a respective buffer tube. In addition, each of the optical fibers has a predetermined color for identifying each individual optical fiber from other optical fibers within a respective optical fiber bundle. Accordingly, three levels of identification are provided in a compact cable having a relatively small cross-section and a large number of small groups of fibers may be formed as required for an emerging cable television architecture requi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.