Optical Fiber Ring Marking Coatings for Stress and Attenuation Control
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Solution Overview
Problem
Ring marking on optical fibers causes stress and increases attenuation, especially during climatic changes, necessitating a method to reduce these effects.
Innovation Solution
Applying a first and second coating layer on the optical fiber with ring markings in between, using a specific width and spacing to distribute stress and reduce attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ring marking is applied directly on the optical fiber, then the optical fiber can be distinguished and identified, but stress is created at discrete areas resulting in increased attenuation
Solution Approach 1:
A coating layer is introduced as an intermediary between the ring marking and the optical fiber. The ring marking is applied on the coating layer rather than directly on the fiber, allowing the coating to absorb and distribute the stress, thereby preventing direct stress concentration on the fiber that would cause attenuation.
Solution Approach 2:
The width and spacing parameters of the ring marking are optimized to specific ranges (width: 700-732 microns, spacing: 900 microns) to control stress distribution. These parameter changes ensure that the stress is distributed evenly through the coating layer without creating concentration points that would increase fiber attenuation.
2Ease of manufacture
If ring marking is applied on the optical fiber, then identification is achieved, but discrete area stress concentration increases attenuation
Solution Approach 1:
The coating layer serves as a mediator that distributes the stress from the ring marking across a larger area. Instead of stress concentrating at discrete points on the fiber, the coating layer absorbs and spreads this stress, eliminating the harmful discrete area stress concentration while maintaining identification capability.
Solution Approach 2:
Specific dimensional parameters of the ring marking (width of 700-732 microns and spacing of 900 microns) are established to optimize stress distribution. These parameter changes ensure uniform stress distribution through the coating layer, preventing stress concentration at discrete areas.
Data Source
AI summary
The present disclosure provides a method of single ring marking of an optical fiber. The method includes a first step of marking a first single ring marking of the optical fiber. In addition, the method includes a second step of marking a second single ring marking of the optical fiber. Further, the present disclosure provides a method of double ring marking of an optical fiber. Furthermore, the method includes a first step of marking a first ring marking, a second step of marking a second ring marking and a third step of marking a third ring marking.