Optical Fiber Coating with Light-Frequency Conversion for Bend Detection
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Solution Overview
Problem
Waveguides, such as optical fibers, can become too severely curved during laying, leading to a loss of total internal reflection and undesirable light coupling out, making it difficult for inexperienced users to determine when the curvature is excessive and affecting data or signal transmission.
Innovation Solution
Incorporating a light-frequency-converting substance in the coating of the waveguide, which converts invisible UV or IR light into visible light at bend points, allowing for easy identification of excessive curvature by generating visible light when the waveguide is overbent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the waveguide is made flexible for adaptable laying, then the ease of operation is improved, but the ability to detect excessive curvature deteriorates
Solution Approach 1:
The coating contains a light-frequency-converting substance that converts invisible UV or IR light to visible light at bend points. When the waveguide is severely curved, visible light escapes and becomes detectable by the human eye, providing a visual indicator of excessive curvature while maintaining flexible laying capabilities
Solution Approach 2:
A light-frequency-converting substance is introduced as an intermediary between the invisible UV/IR light and the human eye. This substance converts the invisible light to visible light, enabling detection of excessive curvature without affecting the flexible nature of the waveguide
2Measurement precision
If UV or IR light is coupled into the waveguide, then the ability to detect excessive curvature is improved, but the loss of information deteriorates since invisible light cannot be perceived by the human eye
Solution Approach 1:
The light-frequency-converting substance changes the wavelength parameter of the light, converting UV or IR light (invisible to human eye) to visible light. This parameter transformation enables human perception of the light while maintaining the detection capability for excessive curvature
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
Enables inexperienced users to reliably identify and avoid excessively curved waveguides, ensuring optimal data transmission by making visible the light escape at severe bend points, thus facilitating proper laying and usage.
Implementation Method 1
the coating comprises a light-frequency-converting substance, so that in the event of UV light or IR light being coupled into the waveguide and an overbent waveguide, visible light escapes from the waveguide at a bend point
Implementation Method 2
The coupled-in light is generally guided through the waveguide by total internal reflection and coupled out again at the end
Data Source
AI summary
A waveguide, in particular an optical fiber, is coated and is of flexible configuration so that the waveguide can be laid in an adaptable manner, wherein the coating includes a light-frequency-converting substance so that in the event of UV light or IR light being coupled into the waveguide and an overbent waveguide, visible light escapes from the waveguide at a bend point.