Optical Fiber Ribbon With Intermittent Bonds for Flexible Packing
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Solution Overview
Problem
Managing connections between optical fibers in fiber optic cable networks is difficult due to the challenges of identifying and grouping fibers, and conventional bonding methods result in rigid ribbon designs that hinder compact cable packaging.
Innovation Solution
Optical fiber ribbons with intermittently bonded subunits using a 'wet-on-wet' process, where bonds are applied at unique longitudinal positions without overlap, allowing for flexible ribbon configurations that can be rolled or bundled, and featuring a diffusion zone between materials for enhanced adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If optical fibers are arranged in ribbons with continuous bonding, then structural integrity is improved, but flexibility and compact packaging capability deteriorate
Solution Approach 1:
The continuous bond between subunits is segmented into intermittent bonds spaced at intervals along the ribbon length. This segmentation allows the ribbon to flex and bundle between bonds while maintaining structural integrity at bond locations, resolving the contradiction between strength and flexibility.
Solution Approach 2:
The bonding configuration transitions from a static continuous bond to a dynamic intermittent bond structure that allows controlled movement and flexibility in non-bonded regions while maintaining strength where needed, enabling both structural integrity and adaptability.
2Adaptability or versatility
If intermittent bonds are applied at multiple longitudinal positions, then flexibility is improved, but bond overlap occurs causing rigidity
Solution Approach 1:
The bond spacing pattern uses asymmetric positioning where successive bonds are offset by a non-integer multiple of the subunit pitch, preventing periodic overlap and creating an irregular bonding pattern that maintains flexibility while avoiding rigid periodic structures.
Solution Approach 2:
The bond spacing parameter is optimized to ensure that the distance between successive bonds does not result in overlap, using specific spacing values that maintain flexibility while preventing the formation of rigid overlapping bond regions.
3Adaptability or versatility
If subunits are loosely contained without bonding, then flexibility is improved, but structural integrity and fiber organization deteriorate
Solution Approach 1:
The ribbon structure is segmented into bonded and unbonded regions, where intermittent bonds provide localized structural support for fiber organization while leaving other regions flexible and loosely contained, balancing both requirements.
Solution Approach 2:
Different regions of the ribbon have different bonding characteristics - bonded regions provide structural integrity and fiber organization, while unbonded regions provide flexibility, creating a structure with spatially varying properties that satisfies both constraints.
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 solution enables flexible optical fiber ribbons that can be packed more compactly, reducing rigidity and out-of-plane deflection, facilitating easier fiber organization and splicing while maintaining structural integrity.
Implementation Method 1
each bond of the plurality of bonds includes a diffusion zone comprising a mixture of the first material and the second material
Data Source
AI summary
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each having a subunit coating surrounding at least one optical fiber. The subunit coating is made of a first material. The optical fiber ribbon also includes a plurality of bonds intermittently formed between adjacent subunits of the plurality of subunits. The plurality of bonds are made of a second material. Each bond of the plurality of bonds has a unique longitudinal position along a length of the optical fiber ribbon such that no other bond of the plurality of bonds is located at the unique longitudinal position. Further, each bond of the plurality of bonds includes a diffusion zone comprising a mixture of the first material and the second material.