Optical Fiber Ribbon Marking Orientation
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Solution Overview
Problem
Existing optical fiber ribbons face issues with increased optical transmission loss and clogging due to markings that cover the entire circumference, and partial markings are not visually recognizable when viewed from the opposite side, impairing identifiability.
Innovation Solution
An optical fiber ribbon design where markings on each fiber are positioned differently in the circumferential direction, with a method involving intermittent connection parts and a colored layer to protect and differentiate the markings, allowing for improved visual recognition even when one marking is blocked by adjacent fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a marking is provided to substantially the entire circumferential surface of each optical fiber, then the identifiability of the optical fiber ribbon is improved, but the outer diameter of each optical fiber increases at the marking section, which may cause optical transmission loss and clogging in dies
Solution Approach 1:
The marking is extracted from covering the entire circumferential surface and is instead applied only to a specific portion (e.g., 180 degrees or less) of the circumferential surface. This extraction eliminates the harmful effect of increased outer diameter while preserving the essential function of identification.
Solution Approach 2:
The marking is applied with local quality by positioning it only on a specific portion of the circumferential surface rather than uniformly across the entire surface. This localized application reduces the affected area, preventing diameter increase and optical transmission loss while maintaining identifiability.
2Reliability
If a marking is provided only partially in the circumferential direction, then the outer diameter increase is reduced, but the marking cannot be visually recognized when viewed from the opposite side, impairing identifiability
Solution Approach 1:
The marking application is segmented across multiple optical fibers within the ribbon. By positioning markings at different circumferential positions on different fibers, the system ensures that at least one marking is always visible from any viewing angle, maintaining identifiability without requiring full circumferential coverage on each fiber.
Solution Approach 2:
The solution transitions from a single-dimension approach (marking on one fiber) to a multi-dimensional arrangement by distributing markings across multiple fibers at different circumferential positions. This spatial distribution in the circumferential dimension ensures visibility from all angles.
3Loss of information
If a marking is provided to the entire circumference of each optical fiber, then the identifiability is improved, but the amount of ink used increases
Solution Approach 1:
The marking is extracted from full circumferential coverage and applied only to a portion of the circumferential surface. This extraction directly reduces the surface area requiring ink application, thereby reducing ink consumption while preserving the identification function.
Solution Approach 2:
By applying the marking with local quality to only a specific portion of each fiber's circumferential surface, the ink usage is significantly reduced compared to full circumferential application, while the identification function remains effective through strategic positioning.
Data Source
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AI summary
To improve identifiability of optical fiber ribbons, an exemplary optical fiber ribbon of the invention includes: at least three optical fibers arranged side by side; and a plurality of connection parts that each connect two adjacent ones of the optical fibers, the connection parts being provided intermittently in a length direction of the optical fibers and in a width direction of the optical fibers. A marking for identifying the optical fiber ribbon is provided to each optical fiber. The position, in the circumferential direction, of the marking provided to at least one of the optical fibers is different from the position, in the circumferential direction, of the marking provided to another optical fiber.