Regroup Optical Cable for Fixed Cross-Connect
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical fiber networks face challenges in implementing a convenient and cost-effective fixed optical cross-connect device that allows each device to receive input from all other devices without self-connection, while avoiding human errors and fiber breakage due to complexity and brittleness.
Innovation Solution
A regroup cable design with a support structure holding N(N−1) fibers in fixed positions, forming N rows at one end and N columns at the other, with two bundles of fibers that shift relative to each other to connect each device to all others without direct self-connection, using a method involving holders with triangular apertures to secure and rearrange fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fiber plates are used to enable fixed optical cross connect, then connectivity between devices is achieved, but the device size becomes relatively large
Solution Approach 1:
The fiber plate is segmented into multiple fiber bundles, where each bundle contains a specific subset of fibers. This segmentation allows the overall structure to be divided into manageable units that can be arranged more compactly, reducing the total area required while maintaining the cross-connect functionality.
Solution Approach 2:
Fiber bundles are nested within a compact support structure that allows multiple bundles to occupy overlapping or adjacent spatial regions. This nesting approach enables the fiber connections to be routed through a smaller volume, effectively reducing the footprint of the optical cross-connect device.
2Adaptability or versatility
If complex fiber configuration is implemented for optical cross connect, then device connectivity is enabled, but human errors in fiber placement increase
Solution Approach 1:
The fibers are pre-arranged into bundled groups with predetermined connection patterns during manufacturing. This preliminary organization eliminates the need for complex on-site fiber placement, reducing human errors while maintaining the required connectivity configuration.
Solution Approach 2:
The support structure acts as an intermediary that pre-establishes the correct spatial relationships between fiber bundles. This intermediary structure guides and constrains fiber placement, ensuring accurate connections without requiring manual precision in complex routing.
3Ease of manufacture
If fibers are routed and bended by machine, then manufacturing automation is achieved, but fiber breakage increases due to brittleness
Solution Approach 1:
The fibers are enclosed within flexible protective coatings and routing channels that accommodate machine handling without exposing the brittle glass cores to sharp bends or mechanical stress. This protective encapsulation enables automated manufacturing while preserving fiber integrity.
Solution Approach 2:
The fiber bundles are pre-coated with protective layers and routed through cushioned channels before machine handling occurs. This beforehand protection cushions the brittle fibers against mechanical shocks and excessive bending during automated manufacturing processes.
Data Source
AI summary
An optical regroup cable is provided for a fixed optical cross connect. The cable may include holders for supporting the fibers within the cable and to group the fibers into two bundles. The bundles are arranged so that relative positions of two bundle ends at a first end of the cable are different from relative positions of two bundle ends at a second end of the cable.