Fiber Optic Distribution Cable Segmented Access Design
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Solution Overview
Problem
Conventional methods for distributing optical fibers from fiber optic cables are cumbersome, require multiple breaches in the cable jacket, and result in stiff, bulky distribution cables with limited flexibility, making it difficult to route them through ducts or sheaves during installation.
Innovation Solution
A method and tool for creating a fiber optic distribution cable that allows a single small opening in the protective covering, enabling a longer length of optical fiber to be accessed without multiple breaches, using a cutting tool with a flexible cutting element to sever the fiber within the cable, resulting in a smaller, more flexible distribution cable footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a long breach is made in the cable jacket to access sufficient optical fiber length, then the required fiber length is obtained, but the cable becomes bulky and stiff, making routing difficult
Solution Approach 1:
The cable jacket is breached at multiple segmented locations rather than creating one long continuous breach. Each breach point is small and localized, allowing the cable to maintain flexibility while still providing sufficient fiber length for distribution purposes.
Solution Approach 2:
The patent transitions from a linear breach approach (single long breach) to a distributed multi-point breach approach. By spacing multiple small breaches along the cable length, the system achieves the required fiber access length without compromising cable flexibility or creating bulky sections.
2Adaptability or versatility
If multiple breaches are made in the cable jacket to access optical fiber, then fiber distribution is enabled, but the cable structure becomes complex and installation time increases
Solution Approach 1:
The cable jacket is breached at multiple segmented locations rather than creating one long continuous breach. Each breach point is small and localized, allowing the cable to maintain flexibility while still providing sufficient fiber length for distribution purposes.
Solution Approach 2:
The multiple breach locations are pre-planned and positioned along the cable length before installation. This preliminary arrangement of breach points enables straightforward fiber access during installation without requiring complex on-site modifications or cable reconfigurations.
3Reliability
If the cable jacket is breached and then sealed with large covering, then environmental protection is provided, but the distribution cable becomes too large and stiff for effective routing
Solution Approach 1:
The cable jacket is breached at multiple segmented locations rather than creating one long continuous breach. Each breach point is small and localized, allowing the cable to maintain flexibility while still providing sufficient fiber length for distribution purposes.
Solution Approach 2:
The patent employs sealing solutions that are minimal in size and flexible in nature, such as small caps or flexible membranes that cover each breach point individually. These thin-film or small-shell sealants provide environmental protection without adding significant bulk or stiffness to the cable structure.
Data Source
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AI summary
Fiber optic distribution cable comprising: a plurality of optical fibers; a protective covering; a distribution optical fiber, the distribution optical fiber being one of the plurality of optical fibers of the fiber optic distribution cable, the distribution optical fiber protruding from an access location of the protective covering, wherein the access location has a length AL and the distribution optical fiber removed from the fiber optic distribution cable has a distribution optical fiber length DOFL of about 5/4 AL or more.