Gradual Fiber Cladding Light Stripper for Heat Dissipation
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Solution Overview
Problem
Conventional fiber cladding light strippers burn due to excessive heat generated by high-order modal light when the entire outer coating is removed, leading to fiber burnout and system damage, as the temperature rise rate is rapid with increased stripping amounts.
Innovation Solution
A gradual fiber cladding light stripper is designed with a preset cutting fixture to form a pre-stripping section, where a recoating section with a covering glue is coated and cured using a light curing device, controlling the stripping rate in stepwise sections to have a lower rate near the laser input terminal and a higher rate further away, reducing heat accumulation and preventing fiber burnout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the entire outer coating is removed to increase the stripping rate, then the light stripping effectiveness is improved, but the temperature rise rate increases rapidly causing fiber burnout
Solution Approach 1:
The outer coating removal is divided into multiple sections along the fiber length, with each section having a different stripping rate. The stripping rate is controlled to be lower near the laser input terminal and higher farther away, segmenting the heat generation and preventing localized overheating that would cause fiber burnout.
Solution Approach 2:
Different sections of the fiber receive different stripping treatments based on their local requirements. The section near the laser input terminal maintains more outer coating for heat dissipation, while sections farther away have more aggressive stripping for better light stripping effectiveness, optimizing performance while preventing burnout at each location.
2Reliability
If the stripping rate is increased to improve light stripping performance, then the high-order modal light removal is enhanced, but the heat energy generated increases causing fiber burnout
Solution Approach 1:
The fiber is divided into multiple stripping sections with progressively increasing stripping rates. This segmentation allows the system to achieve high light stripping performance in sections where it is needed while limiting heat generation in sections where the laser power is highest, preventing the harmful thermal effects.
Solution Approach 2:
The heat generated by light stripping is converted into a beneficial temperature gradient that aids in heat dissipation. By creating a gradual increase in stripping rate away from the input terminal, the system uses the inherent heat flow direction to its advantage, with hotter sections farther from the input naturally dissipating heat away from the vulnerable input region.
3Manufacturing precision
If conventional laser processing is used with mechanical clamping and translation stage, then processing precision is maintained, but the device complexity and manufacturing cost increase
Solution Approach 1:
The outer coating removal process merges multiple operations into a single integrated step. Instead of separately clamping the fiber, positioning it on a translation stage, and performing sequential processing, the invention combines these functions into one streamlined process that achieves the same precision with reduced complexity.
Solution Approach 2:
The processing system is designed to perform multiple functions simultaneously or in an integrated manner. The same setup that positions and processes the fiber also accounts for the gradual stripping pattern, eliminating the need for separate mechanical clamping and translation mechanisms while maintaining processing precision.
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 gradual stripping rate structure effectively dissipates high-order modal light, preventing fiber burnout and reducing manufacturing complexity and costs by controlling the curing of the recoating section with varying light intensities and movement patterns.
Implementation Method 1
The covering glue is irradiated and cured through a preset light curing device to form the recoating section with a gradual light stripping rate
Data Source
AI summary
A gradual fiber cladding light stripper and its manufacturing method is disclosed to include an optical fiber that has a core, a cladding outside the core and an outer coating outside the cladding, the outer coating being removed by a preset cutting fixture to form a pre-stripping section, and a recoating section coated on the surface of the pre-stripping section at one time with a covering glue, the covering glue being irradiated and cured through a preset light curing device to form the recoating section with a gradual light stripping rate. The recoating section has a laser light input terminal with a relatively lower light stripping rate, and a laser light output terminal with a relatively higher light stripping rate.