Field Terminable Fiber Optic Connectors Using Segmented Rod Alignment
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Solution Overview
Problem
Existing optical fiber splicing technologies face challenges in achieving low signal light loss due to factors like lateral displacement, misalignment, numerical aperture differences, and mechanical stresses, often requiring precise alignment and additional tools, which can lead to micro or macro bending and increased insertion losses.
Innovation Solution
The proposed solution involves an optical fiber splicing assembly comprising a barrel member, a splicing member, a guiding member, and a clamp, where the splicing member defines an aperture aligned by rods that abut to form a precise splicing section without deformation, and a guiding member helps align the fibers with minimal damage, allowing for secure locking without external tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a precise V or U groove is used to guide fiber ends, then alignment precision is improved, but manufacturing complexity and distortion from press plate forces increase
Solution Approach 1:
The splicing member is divided into three separate rods (first rod, second rod, third rod) that abut together to form the aperture. This segmentation eliminates the need for complex V or U grooves while maintaining precise alignment, as each rod can be independently positioned and secured within the barrel member.
Solution Approach 2:
The interior surface of the barrel member is provided with projections that locally contact the rods to prevent rotation and maintain positional stability. This localized support system provides precise alignment without requiring complex groove structures throughout the entire device.
2Manufacturing precision
If many components are used in the splicing mechanism, then alignment and securing functions are improved, but the risk of insertion losses from over-constraint and offset increases
Solution Approach 1:
Multiple functions are merged into fewer components. The three rods simultaneously provide alignment, support, and positioning functions that would otherwise require separate components. The projections on the barrel member interior surface combine guidance and constraint functions in a single integrated feature.
Solution Approach 2:
The rods serve multiple functions: they define the aperture geometry, provide alignment references, prevent rotation through projection contact, and maintain the splicing member's position within the barrel. This multi-functionality reduces the total component count while maintaining precision and reliability.
3Manufacturing precision
If an installation platform is required to ensure fiber abutment, then splicing accuracy is improved, but equipment requirements and installation complexity increase
Solution Approach 1:
The splicing member is pre-configured with rods positioned to define the aperture and alignment features before insertion. The projections on the barrel member interior surface are pre-positioned to guide and constrain the rods, ensuring proper alignment is automatically established upon insertion without requiring external installation platforms or tools.
4Stability of the object's composition
If the splicing member is locked in place with rigid constraints, then positional stability is improved, but micro bending and stress on fibers increase
Solution Approach 1:
The rods are positioned within the barrel member with clearance to allow minimal movement and flexibility. The projections provide guidance and constraint while permitting the rods to self-adjust to minor variations, preventing rigid constraints that would transmit stress to the fibers and cause micro bending.
Data Source
AI summary
An assembly for splicing first and second optical fibers is contemplated. The assembly typically comprises a splicing member disposed within a barrel member. A first optical fiber can be inserted through a first end of the barrel member, and a second optical fiber can be inserted through a second end of the barrel member to splice ends of the first and second optical fibers in the splicing member. A recess at the second end of the barrel can be used to lock the second optical cable, and a clamping member can be used to hold the second optical fiber. An optical fiber stub holder can couple the first end of the barrel member and an optical fiber stub from which the first optical fiber extends. Thus, the first and second optical fibers can be effectively secured in a splicing relationship using the assembly.