Optical Fiber Ribbon With Intermittent Bonds for Compact Packaging
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Solution Overview
Problem
Managing connections between optical fibers in fiber optic cable networks is difficult, and conventional optical fiber ribbons, which are fully bonded along their length, are inflexible and occupy larger cable designs, making them unsuitable for compact packaging.
Innovation Solution
Optical fiber ribbons with intermittently bonded subunits, where bonds are uniquely positioned along the length without overlapping across the width, allowing for flexible configurations that can be rolled or bundled, using a 'wet-on-wet' application process to create a diffusion zone between materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If optical fibers are arranged in ribbons and fully bonded along their length, then structural integrity and ease of fusion splicing are 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 length of the optical fiber ribbon. This segmentation allows the ribbon to remain structurally intact for splicing operations while providing flexibility between bond points for compact packaging and routing during installation.
2Ease of manufacture
If optical fibers are arranged in ribbons and fully bonded along their length, then ease of fusion splicing is improved, but cable design size increases
Solution Approach 1:
By segmenting the bonding into intermittent sections rather than continuous bonding, the ribbon maintains sufficient structural integrity at bond points for successful fusion splicing while reducing overall material usage and enabling more compact cable designs with smaller bending radii.
3Adaptability or versatility
If intermittent bonds are applied between subunits, then flexibility and compact packaging are improved, but bond strength and structural integrity may deteriorate
Solution Approach 1:
The bonding characteristics are made local to specific positions along the ribbon length rather than uniform throughout. Each intermittent bond location provides concentrated strength where needed for structural integrity and splicing, while non-bonded sections provide flexibility, creating a spatially varying quality that resolves the contradiction.
4Adaptability or versatility
If bonds are positioned at unique longitudinal positions without overlapping, then flexibility is improved, but manufacturing complexity increases
Solution Approach 1:
The intermittent bonds are applied in a periodic or regular pattern at defined intervals along the ribbon length, rather than requiring complex non-repeating unique positions. This periodic application simplifies manufacturing while still providing the flexibility benefits of non-overlapping bonds at distributed locations.
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 compactly packaged, reducing rigidity and out-of-plane deflection, while maintaining structural integrity and facilitating efficient fusion splicing.
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.