Optical Fiber Structure for Variable Beam Diameter
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Solution Overview
Problem
Conventional multicore-type optical fiber structures cannot adjust laser beam diameters based on processing conditions, requiring complex optical systems to achieve desired beam diameters for precise or solid processing.
Innovation Solution
An optical fiber structure comprising two arrays of optical fibers with different beam diameters, allowing for simple adjustment of beam diameters by alternating and arranging optical fibers with varying core diameters and light divergent points, eliminating the need for complex optical systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional multicore-type optical fiber structure with identical optical fibers is used, then the structure is simple and uniform, but it is impossible to change the beam diameter based on processing conditions
Solution Approach 1:
The optical fiber structure is segmented into multiple optical fibers with different core diameters arranged in specific patterns. Each fiber segment (with different core diameters) provides different beam diameters, enabling the system to output multiple beam diameters simultaneously without requiring complex external optical components for beam diameter adjustment.
Solution Approach 2:
Different optical fibers within the same bundle have different local qualities (different core diameters). This allows each fiber to provide light beams with different diameters, enabling the system to adapt to different processing conditions (precise processing with small beams or solid processing with large beams) while maintaining a simple overall structure.
2Adaptability or versatility
If a special optical system is added to change beam diameter, then beam diameter can be adjusted, but the optical system becomes complex
Solution Approach 1:
The optical fiber bundle itself provides the beam diameter adjustment functionality through its internal structure (different core diameters of individual fibers). The system serves its own need for beam diameter variation without requiring external special optical components, thereby maintaining structural simplicity while achieving adaptability.
3Adaptability or versatility
If optical fibers with different core diameters are arranged in the same array, then different beam diameters can be output, but the arrangement becomes complex
Solution Approach 1:
The optical fibers with different core diameters are arranged in asymmetric patterns (e.g., alternating arrangements or specific geometric patterns) within the bundle. This asymmetric arrangement enables different beam diameters to be output while maintaining a regular enough structure that can be manufactured using conventional techniques.
Solution Approach 2:
Multiple optical fibers with different core diameters are merged into a single bundled structure with linearly arranged output ends. This combining of different fiber types into one integrated bundle allows simultaneous output of different beam diameters while maintaining a simple external structure that is easy to manufacture and handle.
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 the output of light beams with different diameters from a single optical fiber structure, improving usability and convenience by allowing for precise and uniform processing without the complexity of traditional systems.
Implementation Method 1
optical fiber structures that transmit high-output laser light, which is output from the high-output semiconductor lasers, through fibers and output the transmitted light
Data Source
AI summary
An optical fiber structure includes a first fiber array and a second fiber array, which are placed one on the other. For example, the first fiber array includes a substrate having four V-shaped grooves and four first optical fibers, the output ends of which are linearly arranged and fixed to the substrate, and the second fiber array includes a substrate having four V-shaped grooves and four second optical fibers, the output ends of which are linearly arranged and fixed to the substrate. The first optical fiber is a multimode fiber having a core and a cladding, and the core diameter is 60 μm and the outer diameter of the fiber is 80 μm. The second optical fiber is a multimode fiber having a core and a cladding, and the core diameter is 105 μm and the outer diameter of the fiber is 125 μm.