Optical Fiber Ribbon Coating for Winding Collapse Suppression
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Solution Overview
Problem
Existing techniques face challenges in accurately measuring and suppressing winding collapse of optical fiber ribbons due to high frictional coefficients, leading to increased optical loss and decreased work efficiency.
Innovation Solution
An optical fiber ribbon with a ribbon layer having a Young's modulus between 290 MPa and 1400 MPa and a static frictional coefficient between 0.71 and 1.12 is developed, achieved by applying a ribbon layer resin and curing it with ultraviolet light, and optionally using a silicone compound to adjust frictional properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the surface friction of optical fiber ribbon is large, then the optical fiber ribbon can be easily handled and stored, but winding collapse occurs and optical loss increases
Solution Approach 1:
The patent applies parameter changes by precisely controlling the Young's modulus of the ribbon layer within 290-1400 MPa and the static frictional coefficient between ribbons within 0.71-1.12. This optimization resolves the contradiction by finding the optimal balance point where the ribbon layer provides sufficient friction for handling while preventing excessive friction that causes winding collapse and optical loss.
Solution Approach 2:
The patent uses composite materials by forming a ribbon layer that covers multiple optical fibers, creating a composite structure that combines the optical fibers with the protective ribbon layer. This composite structure allows the ribbon layer to provide the necessary frictional properties for handling while protecting the optical fibers from winding collapse.
2Ease of operation
If the surface friction of optical fiber ribbon is large, then the optical fiber ribbon can be easily handled and stored, but work efficiency decreases due to decreased separability and collectability
Solution Approach 1:
The patent applies parameter changes by optimizing the static frictional coefficient between optical fiber ribbons to be within 0.71-1.12. This controlled friction level enables easy handling and storage while maintaining sufficient separability and collectability, thus preserving work efficiency in manufacturing processes.
3Device complexity
If the dynamic frictional coefficient is not accurately measured, then measurement complexity is reduced, but winding collapse cannot be effectively suppressed
Solution Approach 1:
The patent applies parameter changes by shifting from measuring dynamic frictional coefficient to controlling the static frictional coefficient and Young's modulus parameters. This parameter substitution simplifies the measurement process while effectively suppressing winding collapse, as the static frictional coefficient can be more easily controlled through material composition and curing conditions.
4Ease of manufacture
If the Young's modulus of the ribbon layer is not optimized, then manufacturing simplicity is maintained, but winding collapse occurs
Solution Approach 1:
The patent applies parameter changes by establishing the optimal Young's modulus range of 290-1400 MPa for the ribbon layer. This parameter optimization prevents winding collapse while maintaining manufacturing simplicity, as the Young's modulus can be controlled through standard resin selection and curing process parameters without requiring complex manufacturing steps.
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 effectively suppresses winding collapse, reduces transmission loss, and stabilizes the winding process, ensuring efficient handling and storage of optical fiber ribbons.
Implementation Method 1
a step of applying a ribbon layer resin to a plurality of optical fibers and a step of forming a ribbon layer by irradiating the ribbon layer resin with ultraviolet light
Data Source
AI summary
An optical fiber ribbon includes a plurality of optical fibers and a ribbon layer covering the plurality of optical fibers. A Young's modulus of the ribbon layer is larger than or equal to 290 MPa and smaller than or equal to 1400 MPa. A static frictional coefficient between a plurality of the optical fiber ribbons is larger than or equal to 0.71 and smaller than or equal to 1.12.