多芯光纤光栅形状重构中的扭转校准技术研究
Research on Twist Calibration Technology in Shape Reconstruction of Multi-Core Fiber Optic Gratings
黄泽超 1张俊 2高侃 2罗爱平1
作者信息
- 1. 华南师范大学信息光电子科技学院,广州 510631
- 2. 中国电子科技集团公司第二十三研究所,上海 201900
- 折叠
摘要
由于多芯光纤光栅制备工艺中的几何缺陷以及封装位置摆放不正确,可能导致不同离散测量点的光纤截面中的纤芯之间产生相对角度偏移,进而产生光纤截面扭转问题.随着三维形状重构距离的增加,该扭转问题会带来形状重构坐标的误差累积,并最终影响三维形状重构的准确性.为此,设计并搭建了相应的形状重构扭转校准实验,以解决该固有扭转问题.实验结果表明,该扭转校准方法拓展了三维形状重构模型的适用范围,提高了重构结果的准确性.
Abstract
Due to the geometric defects in the preparation process of multi-core fiber optic gratings and improper placement during packaging,relative angular deviations may occur between the fiber cores in the fiber cross-sections of different discrete measurement points,leading to twisting issues in the fiber cross-sections.With the increase of the distance for 3D shape reconstruction,this twisting problem will accumulate error in the reconstructed coordinates,which ultimately affects the accuracy of 3D shape reconstruction.Therefore,the corresponding shape reconstruction twist calibration experiments are designed and constructed to solve this inherent twisting problem.The experimental results show that this twist calibration method expands the applicable range of the 3D shape reconstruction model and improves the accuracy of the reconstruction results.
关键词
多芯光纤光栅/Frenet标架/曲线重构/扭转角度校准Key words
multi-core fiber optic grating/Frenet frame/curve reconstruction/twist angle calibration引用本文复制引用
出版年
2024
NETL
NSTL
万方数据