Multicore Fiber Strand Structure for High-Density Cable Deployment
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Solution Overview
Problem
Current fiber optic cables face challenges in accommodating increased network connectivity and bandwidth demands due to the need for high fiber counts, which require numerous buffer tubes, strength members, and armor, leading to high deployment costs and space constraints, especially in densely populated areas.
Innovation Solution
The implementation of multicore optical fiber strands within a fiber optic cable, which consolidates multiple light guiding cores into a smaller form factor, reducing the need for buffer tubes, strength members, and armor, while providing enhanced connectivity and bandwidth capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If high fiber count optical cables are deployed to accommodate increased network connectivity and bandwidth demands, then connectivity capacity is improved, but cable size, weight, and complexity increase due to numerous buffer tubes, strength members, and armor
Solution Approach 1:
The patent merges multiple individual fiber strands into a single multicore fiber structure, where multiple light guiding cores are integrated within one strand. This consolidation reduces the number of separate fibers from hundreds to just a few multicore strands, thereby reducing cable complexity while maintaining high connectivity capacity through the multiple cores within each strand.
Solution Approach 2:
The multicore fiber strand serves multiple functions simultaneously: it provides multiple light guiding paths (cores) for high bandwidth capacity while maintaining a simple cable structure. The single strand design eliminates the need for complex protective structures around each individual fiber, achieving multi-functionality with reduced complexity.
2Adaptability or versatility
If high fiber count optical cables are deployed to provide connection redundancy and network expansion capability, then network adaptability is improved, but deployment cost and time increase
Solution Approach 1:
By merging multiple fiber functions into a single multicore strand, the patent reduces the total number of individual fibers that need to be installed, spliced, and protected. This consolidation significantly reduces deployment time and cost while maintaining the network expansion capability through the multiple cores within each strand.
3Reliability
If traditional single-core fiber strands are used to protect each fiber individually, then fiber protection is improved, but cable weight and space requirements increase
Solution Approach 1:
The patent combines multiple individual fiber protection requirements into a single multicore fiber structure with one unified protective layer. Instead of protecting each individual fiber separately (which would require multiple buffer tubes and protective layers), the multicore design provides protection for all cores simultaneously within a single strand, significantly reducing cable weight.
4Reliability
If numerous buffer tubes and protective layers are added to protect each fiber strand, then fiber protection is improved, but ease of installation and retrieval is worsened
Solution Approach 1:
The patent merges multiple protective functions into a single simplified cable structure. The multicore fiber strand requires far fewer buffer tubes and protective layers compared to traditional single-core fibers, making the cable much easier to install and retrieve while maintaining adequate protection for the integrated cores.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multicore design allows for efficient deployment and retrieval of fiber optic cables with improved space utilization and reduced weight, facilitating network expansion and connectivity without significant space or cost increases, even in harsh environments.
Implementation Method 1
Each optical fiber strand contains one core optical waveguide, and each core optical waveguide transmits data or information
Data Source
AI summary
Systems, methods, and other embodiments associated with a multicore fiber optic device for deployment in the field and in harsh environments. In one embodiment, an optical fiber device includes an optical fiber strand configured to include a light guiding core. The light guiding core is positioned within and enclosed by the optical fiber strand and provides an optical waveguide. The optical fiber device can further include an outer protective layer configured to enclose the optical fiber strand and the light guiding core. In the example optical fiber device, the optical fiber strand, the light guiding core, and the outer protective layer extend along a same axis. The optical fiber device can be configured to include multiple light guiding cores, protection layers, and deployment layers for field deployment and protection from harsh environments.