Optical Fiber Tapering Using Self-Learning Profile Correction

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Solution Overview

Problem

Existing optical fiber tapering machines struggle to produce tapers that precisely conform to user specifications due to non-idealized and unintended imperfections caused by variations in temperature, speed, and mechanical motion, resulting in suboptimal fiber taper quality.

Innovation Solution

A method and system that involve receiving fiber parameters, modeling an idealized taper, establishing processing parameters, performing a tapering operation, measuring the resultant fiber, determining differences between the measured and modeled data, and adjusting processing parameters to form a new resultant fiber that meets the specified taper characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional tapering machines are used with fixed processing parameters, then the manufacturing process is simple and fast, but the manufacturing precision of the fiber taper is poor due to imperfections from temperature and speed variations

Engineering Contradiction:
Improvetaper qualityVSAvoidprocessing system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system captures images of the tapered fiber during processing, measures the actual taper dimensions, compares them to the target specifications, and automatically adjusts processing parameters based on the measured deviations. This closed-loop feedback mechanism continuously improves taper quality by correcting errors in real-time.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-calibration and self-optimization by using its own measurement data to automatically adjust its processing parameters. The machine learns from its own performance and improves its manufacturing precision without external intervention, making the system self-correcting and adaptive.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If processing parameters are fixed based on initial modeling, then the operation is simple and quick, but the manufacturing precision deteriorates due to unintended imperfections from temperature and mechanical variations

Engineering Contradiction:
Improvetaper conformity to specificationVSAvoidprocessing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary modeling to establish initial processing parameters before actual tapering. This preliminary preparation allows the system to start with optimized parameters and then make iterative improvements, reducing the time needed for multiple correction cycles while maintaining high precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system performs continuous measurement and adjustment during the tapering process rather than stopping to correct errors. The feedback loop operates continuously, making real-time parameter adjustments that maintain precision throughout the entire processing operation, minimizing idle time and maximizing productive action.

Inventive Principle:
Principle #20Continuity of useful action

3Manufacturing precision

If the tapering process uses fixed parameters without adjustment, then the process is stable and simple, but the manufacturing precision is poor due to variations in temperature, speed, and mechanical motion

Engineering Contradiction:
Improvetaper accuracyVSAvoidoperational simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system automatically performs measurement, analysis, and parameter adjustment without requiring operator intervention. The machine serves itself by detecting its own performance deviations and correcting them autonomously, maintaining both high precision and operational simplicity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically changes processing parameters such as heating temperature, platform speed, and tension force based on real-time measurement feedback. These automatic parameter adjustments compensate for environmental variations and mechanical imperfections, maintaining high taper accuracy without complicating the operator's workflow.

Inventive Principle:
Principle #35Parameter changes

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

This approach enables the production of high-quality tapers that accurately conform to user specifications by iteratively adjusting processing parameters until the differences between the idealized and measured data do not exceed a predetermined threshold, improving the precision and consistency of the tapering process.

Implementation Method 1

The tapering machine applies heat to the portion to be tapered and one or both of the securing means are translated away from the other securing means by a delta in speed and/or direction... When sufficient heat is applied, the fiber softens in the heated area so that the translation forces gradually stretch the heated portion in a controlled manner to achieve a taper.

Methodology Applied
Scientific EffectThermal heating: Heating

Implementation Method 2

In some tapering machines, electrodes are used to form heated plasma arcs that provide the tapering heat source.

Methodology Applied
Scientific EffectPlasma arc heating: Electric Arc

Data Source

PatentUS11926553B2Self-learning fiber processing system and method
Publication Date: 2024.03.12 3SAE TECH
  • US11926553B2 patent drawing
  • US11926553B2 patent drawing
  • US11926553B2 patent drawing

AI summary

Provided is a system for and a method of processing an optical fiber, such as tapering an optical fiber. The method includes receiving fiber parameters defining characteristics of an optical fiber, modeling an idealized fiber based on the fiber parameters to establish modeled data, and establishing processing parameters. A processing operation is performed on the optical fiber according to the processing parameters to produce a resultant fiber. Aspects of the resultant fiber are measured to establish measured data. The measured data and the modeled data are normalized to a common axis and a difference between the two is determined. The processing parameters are adjusted based on the differences.