Abrasive Jet Cleaving Optical Fiber Ferrule Termination
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Solution Overview
Problem
The manual process of terminating fiber optic cables is labor-intensive and prone to errors, such as cracking the optical fibers during cleaving, which requires careful operator handling and multiple steps, and existing automated methods like laser cleaving are expensive and complex.
Innovation Solution
An abrasive jet cleaving system that efficiently cleaves optical fibers at room temperature, removing epoxy from the ferrule end face without damaging it, and allows for precise shaping and polishing, reducing the need for multiple polishing steps and expensive consumables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual cleaving with scribe tool is used, then operator control over cleave quality is improved, but labor intensity and time consumption increase significantly
Solution Approach 1:
The patent replaces the mechanical scribe tool system with an abrasive jet system that uses high-velocity abrasive particles delivered via gas flow to cleave optical fibers. This substitution maintains precision while enabling automation and increasing throughput, as the abrasive jet can be precisely controlled and replicated without manual intervention.
Solution Approach 2:
The invention utilizes pneumatic delivery of abrasive particles through a gas flow system. Compressed gas accelerates abrasive particles through a nozzle to create a focused jet that cleaves the optical fiber. This pneumatic mechanism enables automated, consistent cleaving with high precision and increased productivity compared to manual mechanical scribing.
2Productivity
If laser cleaving is used to automate the process, then productivity is improved, but equipment cost and system complexity increase
Solution Approach 1:
The patent employs inexpensive abrasive particles that are consumed in the cleaving process. These particles are delivered in a continuous flow and do not require expensive, complex laser systems. The abrasive particles serve as a disposable medium that simplifies the overall system while maintaining high productivity and automation capability.
3Extent of automation
If laser cleaving is used, then automation is improved, but radiation hazards and fiber damage risk worsen
Solution Approach 1:
The patent converts the potentially harmful high-velocity particle stream into a beneficial cleaving mechanism. By controlling the abrasive jet parameters, the system achieves precise fiber cleaving without the radiation hazards associated with laser systems. The kinetic energy of the abrasive particles is harnessed to cleanly fracture the fiber without thermal damage or radiation exposure.
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 system achieves high connector yields with low fiber damage, simplifies the termination process, and reduces costs by eliminating the need for expensive equipment and radiation hazards, while ensuring optical fibers are polished to a high enough quality to pass standard insertion and return loss testing protocols.
Implementation Method 1
an abrasive jet stream is used to remove adhesive from a work piece
Implementation Method 2
abrasive jet cleaving systems that allows optical fibers to be efficiently and systematically cleaved
Data Source
AI summary
A process for terminating an optical fiber with a ferrule includes the steps of: (a) providing an optical fiber and ferrule with an end of the optical fiber extending beyond a surface of the ferrule; and (b) directing a jet comprising an air-abrasive mixture at the end of the optical fiber to cleave the end of the optical fiber from the remainder of the optical fiber.