Electrospun Fiber Cleaning in Optical Alignment
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Solution Overview
Problem
Existing optical fiber alignment systems face challenges in achieving precise alignment and cleaning of optical fibers, particularly with ferrule-less connectors, which can lead to contamination and reduced optical connection efficiency due to Fresnel reflections.
Innovation Solution
Incorporating electrospun cleaning structures with self-healing characteristics and index matching gel within optical fiber alignment devices to clean and coaxially align optical fibers, preventing contaminants and enhancing optical coupling by reducing Fresnel reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ferrule-less connectors are used to reduce manufacturing costs, then manufacturing cost is reduced, but alignment precision deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-coating the fiber end faces with cleaning structures (electrospun nanofibers) before the fibers are inserted into the alignment device. This pre-cleaning action removes contaminants that would otherwise compromise alignment precision, while the V-groove structure provides preliminary mechanical alignment guidance. The cleaning layer is applied in advance to protect the fiber end faces during handling and insertion, enabling ferrule-less design to achieve both low cost and high precision.
2Manufacturing precision
If V-grooves are used for fiber alignment, then alignment precision is improved, but contamination risk increases
Solution Approach 1:
The patent applies preliminary anti-action by placing cleaning structures (electrospun nanofiber coatings) on the fiber end faces before insertion into the V-groove alignment device. This pre-established protective layer actively prevents contaminants from adhering to the fiber end faces during the alignment process, countering the contamination risk that would otherwise be exacerbated by the open V-groove structure. The cleaning layer acts as a barrier that repels or captures particulates before they can contaminate the optical surfaces.
Solution Approach 2:
The cleaning structures are designed with self-cleaning or self-healing characteristics. The electrospun nanofiber coating can automatically remove or repel contaminants through its surface properties, eliminating the need for external cleaning mechanisms. This self-service capability maintains alignment precision over time without requiring additional complex systems, making the V-groove design both precise and contamination-resistant.
3Device complexity
If fiber end faces are not cleaned, then device complexity is reduced, but optical connection efficiency deteriorates due to Fresnel reflections
Solution Approach 1:
The cleaning structures are designed with self-cleaning or self-healing characteristics that enable them to maintain their cleaning function without external intervention. The electrospun nanofiber coating can automatically remove or repel contaminants through its surface properties, eliminating the need for external cleaning mechanisms. This self-service capability maintains optical connection efficiency while avoiding the addition of complex cleaning systems.
Solution Approach 2:
The cleaning layer is designed as a consumable, low-cost component that can be easily replaced. The electrospun nanofiber coating provides effective contamination prevention and cleaning at minimal cost, and when it becomes saturated or damaged, it can be quickly replaced without affecting the overall device structure. This approach maintains high optical connection efficiency through effective cleaning while keeping device complexity low.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively cleans and aligns optical fibers, preventing contamination and improving optical connection efficiency by reducing Fresnel reflections and maintaining alignment even after de-mating, thus enhancing the performance of optical fiber connections.
Implementation Method 1
electrospun cleaning structures with self-healing characteristics
Implementation Method 2
electrospun cleaning structures
Implementation Method 3
index matching gel within optical fiber alignment devices to clean and coaxially align optical fibers, preventing contaminants and enhancing optical coupling by reducing Fresnel reflections
Implementation Method 4
optical fiber alignment devices configured for co-axially aligning two fibers end-to-end
Implementation Method 5
V-grooves are commonly used in prior-art ferrule-less fiber optic alignment devices
Data Source
AI summary
The present disclosure relates to system and method for cleaning an end face of a bare optical fiber (100). The system and methods include inserting the end face of the bare optical fiber (100) through a layer of material (500) that includes electrospun fibers.