Fiber Optic Furcation Junction Using Heat Shrink and Adhesive
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Solution Overview
Problem
Existing methods for furcating fiber optic cables with multiple optical fibers into individual cables require complex processes and specialized parts, failing to create a strong, watertight junction that allows for fiber bending due to expansion and contraction.
Innovation Solution
A method involving threading individual fibers into protective tubes, folding reinforcing fibers, securing with wire, applying adhesive, and covering with heat shrink tubing to create a durable, watertight junction that allows for fiber flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing methods for furcating fiber optic cables are used, then the junction can be created, but the process becomes complex and requires specialized parts
Solution Approach 1:
The furcation process is divided into distinct sequential steps: threading fibers into protective tubes, folding reinforcing fibers, securing with wire, applying adhesive, and covering with heat shrink tubing. Each step is simple and uses common materials, avoiding the need for specialized parts while maintaining ease of manufacture.
2Reliability
If the junction is made strong and watertight, then reliability is improved, but the ability to allow fiber bending is reduced
Solution Approach 1:
The heat shrink tubing covering the junction is designed to be flexible, allowing it to conform to bent fiber configurations while maintaining the watertight seal. The adhesive layer provides structural strength and sealing, while the flexible heat shrink tubing accommodates fiber movement and bending without compromising junction integrity.
3Ease of manufacture
If simple materials are used, then ease of manufacture is improved, but the durability and watertightness of the junction may be compromised
Solution Approach 1:
The junction employs a composite structure combining multiple materials: protective tubes for fiber containment, reinforcing fibers for structural strength, wire for mechanical securing, adhesive (such as epoxy) for bonding and sealing, and heat shrink tubing for final protection and waterproofing. This composite approach uses common materials in combination to achieve both simplicity and high reliability with durable, watertight junctions.
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 results in a strong, watertight, and flexible junction that protects optical fibers while enabling them to absorb cable expansion and contraction without requiring specialized tools or parts.
Implementation Method 1
The entire junction, including the first tube and reinforcing fibers, are then coated in an adhesive, such as epoxy. The layer of adhesive adds strength and durability to the junction and also makes the junction water tight.
Implementation Method 2
a second tube is brought over the junction to provide further protection and stiffening and finally the entire junction is covered in heat shrink tubing
Data Source
AI summary
A fiber optic furcation method for fiber optic cables having a plurality of optical fibers and a fiber optic junction made by said method. The method comprises the steps of threading each optical fiber into a separate fiber optic cable forming a junction; placing a first tube around the junction so that the tube covers the reinforcing members of the fiber optic cables; folding reinforcing fibers from the fiber optic cables over the first tube; applying an adhesive to the reinforcing fibers; placing a second tube around the junction; and shrink wrapping the junction.