Optical Fiber Ribbon With Directional Bonding for Easy Splitting
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Solution Overview
Problem
Existing optical fiber ribbons face issues with separation and damage during manufacturing due to inadequate control of bonding forces in the longitudinal and vertical directions, leading to decreased installation and connection workability in high-density optical fiber cables.
Innovation Solution
The optical fiber ribbon is designed with specific bonding regions that provide a high horizontal separation force (300 gf or more) and low vertical separation force (10 gf or less) to prevent separation and damage, with a ratio of horizontal to vertical forces ranging from 30 to 1200, and includes non-bonding sections to enhance flexibility and workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If optical fibers are bonded together in an optical fiber ribbon, then connection workability is improved, but the optical fibers may separate or damage during manufacturing
Solution Approach 1:
The patent applies parameter changes by controlling the bonding strength through specific resin materials and bonding conditions to achieve different separation forces in longitudinal and vertical directions. The bonding parameters are optimized so that the separation force in the longitudinal direction is 3 times to 1200 times greater than in the vertical direction, resolving the contradiction between connection workability and bonding stability.
2Reliability
If the bonding force between optical fibers is increased to prevent separation, then bonding stability is improved, but the optical fibers become difficult to separate for connection
Solution Approach 1:
The patent applies local quality by creating direction-dependent bonding characteristics. The bonding structure provides strong resistance to longitudinal separation (high bonding stability) while maintaining low resistance to vertical separation (easy connection workability). This is achieved through specific resin material properties and bonding geometry that create anisotropic bonding strength.
3Quantity of substance
If optical fiber ribbons are used in high-density cables with limited space, then cable density is improved, but the ribbons may deform or separate during rolling
Solution Approach 1:
The patent applies parameter changes by optimizing the bonding strength parameters to maintain ribbon integrity during rolling operations. The bonding force is controlled to be sufficient to prevent separation during high-density cable manufacturing processes including rolling, while not being so strong as to cause deformation or damage to the optical fibers.
Data Source
AI summary
The present disclosure relates to an optical fiber ribbon, which is a component included in a high-density optical fiber cable including high-density optical fibers (which are installed in a limited space such as a conduit line) per unit area to build a large-capacity communication network, in which bonding of optical fibers is maintained to allow the optical fibers to be rolled in a width direction, and which is configured to achieve an optimal separation force on each bonding region in a longitudinal direction of the optical fibers and a direction perpendicular to the optical fibers, thereby improving workability in splitting or connecting the optical fiber ribbon and preventing inadvertent separation of the optical fibers of the optical fiber ribbon during the manufacture of the optical fiber cable.