Fiber Array Guide Member Layout for Low-Cost Precise Alignment
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Solution Overview
Problem
Existing fiber array substrates with and without grooves face challenges in manufacturing complexity, cost, and alignment accuracy, leading to signal loss and assembly inefficiencies.
Innovation Solution
A fiber array unit with guide members that position optical fibers between sidewalls without individual grooves, using dummy fibers and fixtures for alignment, allowing for passive alignment and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If grooves are provided for each optical fiber to control position, then alignment accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The substrate is divided into functional zones: guide member regions with grooves for precise positioning, and flat regions without grooves for cost-effective manufacturing. This segmentation allows different areas to serve different purposes - the guide members provide alignment accuracy where needed, while the majority of the substrate maintains simple flat geometry to reduce manufacturing complexity and cost.
Solution Approach 2:
Guide members are introduced as intermediary elements that bridge the gap between the substrate and optical fibers. These guide members, positioned on the flat substrate surface, provide the necessary alignment functionality without requiring the entire substrate to have complex grooved structures. The guide members act as mediators that enable precise fiber positioning while keeping the substrate itself simple and cost-effective to manufacture.
2Manufacturing precision
If grooves are provided for each optical fiber to control position, then alignment accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The substrate is divided into functional zones: guide member regions with grooves for precise positioning, and flat regions without grooves for cost-effective manufacturing. This segmentation allows different areas to serve different purposes - the guide members provide alignment accuracy where needed, while the majority of the substrate maintains simple flat geometry to reduce manufacturing complexity and cost.
Solution Approach 2:
Guide members are introduced as intermediary elements that bridge the gap between the substrate and optical fibers. These guide members, positioned on the flat substrate surface, provide the necessary alignment functionality without requiring the entire substrate to have complex grooved structures. The guide members act as mediators that enable precise fiber positioning while keeping the substrate itself simple and cost-effective to manufacture.
3Device complexity
If no grooves are provided to reduce complexity, then manufacturing cost is reduced, but alignment accuracy and positioning precision deteriorate
Solution Approach 1:
The substrate is divided into functional zones: guide member regions with grooves for precise positioning, and flat regions without grooves for cost-effective manufacturing. This segmentation allows different areas to serve different purposes - the guide members provide alignment accuracy where needed, while the majority of the substrate maintains simple flat geometry to reduce manufacturing complexity and cost.
Solution Approach 2:
Guide members are introduced as intermediary elements that bridge the gap between the substrate and optical fibers. These guide members, positioned on the flat substrate surface, provide the necessary alignment functionality without requiring the entire substrate to have complex grooved structures. The guide members act as mediators that enable precise fiber positioning while keeping the substrate itself simple and cost-effective to manufacture.
4Device complexity
If no grooves are provided to reduce complexity, then manufacturing cost is reduced, but assembly time increases due to alignment difficulty
Solution Approach 1:
The substrate is divided into functional zones: guide member regions with grooves for precise positioning, and flat regions without grooves for cost-effective manufacturing. This segmentation allows different areas to serve different purposes - the guide members provide alignment accuracy where needed, while the majority of the substrate maintains simple flat geometry to reduce manufacturing complexity and cost.
Solution Approach 2:
Guide members are introduced as intermediary elements that bridge the gap between the substrate and optical fibers. These guide members, positioned on the flat substrate surface, provide the necessary alignment functionality without requiring the entire substrate to have complex grooved structures. The guide members act as mediators that enable precise fiber positioning while keeping the substrate itself simple and cost-effective to manufacture.
Data Source
AI summary
Fiber array unit assemblies and methods of manufacturing the same are provided herein. A fiber array unit includes a first set of optical fibers, a first guide member, and a second guide member. The fiber array unit includes a fiber array structure having a surface that defines a first groove and a second groove. The surface defines a first area between the first groove and the second groove, wherein the first area is provided without any grooves. The first guide member is received in the first groove to assist in positioning the first guide member relative to the fiber array structure. The second guide member is received in the second groove to assist in positioning the second guide member relative to the fiber array structure. Each optical fiber of the first set of optical fibers is positioned between the first guide member and the second guide member.