Optical cable methods of manufacture thereof and articles comprising the same
US10983018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2020 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Apr 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/44384
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is an optical cable comprising a support; flexible protective tubes helically wound around the support, each flexible protective tube comprising an optical fiber comprising an optical core; a cladding disposed on the core; and a primary coating external to the cladding; and a deformable material surrounding the optical fiber; an outer jacket surrounding the flexible protective tubes; wherein each optical fiber is about 0.5% to about 1.5% longer than its respective flexible protective tube; wherein an allowable strain on the optical cable with substantially zero stress on the optical fibers is determined by equations (1) and (2) below:where d is the amount of optical fiber clearance for free movement within the flexible protective tube, D is an average helical diameter of the helically wound flexible protective tubes, and p is an average helical pitch of the helically wound flexible protective tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.