Optical Fibre Ribbon Stacking for Compact Cable Deployment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical fibre ribbons have a larger diameter, making them difficult to install in small-diameter ducts and requiring improved deployment and flexibility in optical fibre cable systems.
Innovation Solution
A method for stacking optical fibre ribbons with alternating elevated and groove regions allows for efficient arrangement and bending, reducing the overall height and increasing fibre density, enabling easier installation in constrained spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional optical fibre ribbons are used, then fibre density is maintained at standard levels, but the cable diameter becomes larger making installation in small-diameter ducts difficult
Solution Approach 1:
Multiple optical fibre ribbons are stacked one on top of another in a nested arrangement, with each ribbon positioned within the vertical profile of the cable. This nesting approach allows multiple fibres to occupy the same horizontal footprint, reducing the overall cable diameter while maintaining high fibre density, thereby enabling installation in small-diameter ducts.
Solution Approach 2:
The patent transitions from a single-layer horizontal arrangement of optical fibres to a multi-layer vertical stacking arrangement. By utilizing the vertical dimension (height) instead of expanding horizontally, the cable diameter is reduced while accommodating more fibres, thus solving the contradiction between compact size and fibre capacity.
2Volume of moving object
If optical fibre ribbons are stacked to reduce diameter, then installation in ducts becomes easier, but the structure becomes more complex
Solution Approach 1:
The optical fibre assembly is segmented into multiple independent ribbon units, each containing a subset of fibres. These segmented ribbons are then stacked vertically with regular spacing. This segmentation allows for modular assembly and simplifies the stacking process while achieving compact cable diameter, reducing the complexity burden.
Solution Approach 2:
The patent employs regular spacing parameters between stacked ribbons and standardized ribbon dimensions to create a predictable, repeatable stacking pattern. By using consistent geometric parameters (equal spacing, uniform ribbon size), the complexity of multi-ribbon stacking is reduced to a systematic process that maintains structural simplicity despite the increased number of components.
3Adaptability or versatility
If optical fibre ribbons are arranged with elevated and groove regions, then bending flexibility at non-preferential axis is improved, but manufacturing precision requirements increase
Solution Approach 1:
The optical fibre ribbon incorporates local structural variations in the form of elevated regions (protrusions) and groove regions (depressions) at specific locations along the ribbon length. These localized geometric features provide flexibility at non-preferential axes without requiring the entire ribbon structure to be complex. The local quality approach allows bending flexibility to be introduced only where needed, reducing overall manufacturing precision requirements.
Solution Approach 2:
The elevated and groove regions are positioned asymmetrically along the ribbon structure, creating a pattern that facilitates bending at non-preferential axes. This asymmetric arrangement of protrusions and depressions allows the ribbon to flex more easily in directions other than its primary orientation, improving adaptability while maintaining relatively simple manufacturing processes through standardized asymmetric patterning.
Data Source
AI summary
The present disclosure provides a method for stacking of a plurality of optical fibre ribbons (106). The plurality of optical fibre ribbons (106) is defined by a top surface (S1) and a bottom surface (S2). The top surface (S1) and bottom surface (S2) are defined by a plurality of elevated regions and a plurality of groove regions. The method for stacking of the plurality of optical fibre ribbons (106) includes arranging the plurality of optical fibre ribbons (106) over each other such that the plurality of elevated regions of each of the plurality of optical fibre ribbons fits over the plurality of groove regions of an adjacent optical fibre ribbon of the plurality of optical fibre ribbons (106). In addition, arrangement of the plurality of optical fibre ribbons forms an optical fibre ribbon stack (200).