Lateral Optical Fiber Lens Angle Measurement With Rotatable Alignment
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Solution Overview
Problem
There is no unified measuring device and measurement method for the light-emitting angle and divergence angle of lateral optical fiber lenses, necessitating a convenient, easy-to-operate, and high-accuracy solution.
Innovation Solution
A measuring device comprising an XZ movable platform, an XY movable platform, a rotatable accommodating pipe, and an optical detection card, utilizing laser monochromaticity and directivity to measure these angles by adjusting the fiber lens's position and direction, and employing an optical power probe to enhance measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a unified measuring device is developed, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The measuring device is divided into two independent movable platforms: an XZ movable platform for positioning the fiber lens and an XY movable platform for positioning the detection card. Each platform handles specific measurement tasks, allowing the system to achieve high measurement precision through coordinated operation of simplified subsystems rather than a single complex mechanism.
2Adaptability or versatility
If the fiber lens is rotated and moved to change light-emitting direction, then adaptability is improved, but device complexity increases
Solution Approach 1:
The accommodating pipe is designed to be rotatable on the XZ movable platform, enabling dynamic adjustment of the fiber lens's light-emitting direction. This dynamic configuration allows the device to adapt to different measurement requirements (light-emitting angle and divergence angle) while maintaining a relatively simple structural framework through standardized movable platform components.
3Measurement precision
If special optical detection card is used for positioning, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The optical detection card uses a simplified square identification region with area not smaller than the optical power probe's detecting surface, creating a clear visual reference that simplifies positioning operations. This design provides an intuitive optical signal pattern that makes it easier for operators to align and position components accurately without requiring complex alignment procedures.
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 device provides accurate measurements of light-emitting and divergence angles with reduced error, using low-cost components and simple methods, ensuring good repeatability and improved measurement precision.
Implementation Method 1
measuring the light-emitting angle and the divergence angle by utilizing characteristics including high monochromaticity and high directivity of a laser
Data Source
AI summary
Disclosed are a measuring device for a lateral optical fiber lens, the measuring device comprising an XZ movable platform and an XY movable platform, wherein a rotatable accommodating pipe is arranged on the XZ movable platform, an optical detection card is arranged on the XY movable platform, an optical power probe is arranged below the optical detection card, and the optical detection card has a height smaller than that of the accommodating pipe. The present application further provides a method for measuring a light emergence angle and a divergence angle of a lateral optical fiber lens by using the measuring device for a lateral optical fiber lens. By means of the measuring device for the lateral optical fiber lens provided in the present application, a light emergence angle and a divergence angle of a lateral optical fiber lens can be measured, a fiber lens can be rotated by means of the accommodating pipe, the position and the level of the fiber lens can be adjusted by means of the XZ movable platform, and therefore a light emergence direction of the fiber lens is changed. Then, by utilizing the characteristics of a high monochromaticity, high directivity etc. of a laser, a point of projection of a light spot is positioned by means of the optical detection card and the optical power probe, and the light emergence angle and the divergence angle are measured.