High accuracy calibration method for 3D curve reconstruction based on a twisted multicore fiber

被引：0
|
作者：
Yang, Keyuan [1 ]
Ke, Changjian [1 ,2 ]
Xv, Zikang [1 ]
Wang, Zhihao [1 ]
Liu, Deming [1 ,2 ]
机构：
[1] School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan,430074, China
[2] Wuhan National Laboratory for Optoelectronics, Wuhan,430074, China
来源：
Optics Letters | 2025年 / 50卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Image reconstruction;
D O I：
10.1364/OL.555220
中图分类号：
学科分类号：
摘要：
A high accuracy calibration method for three-dimensional (3D) curve reconstruction based on a twisted multicore fiber (MCF) is proposed and experimentally investigated. The core spacing, core azimuth, and twist bias of the twisted MCF are decoupled and calibrated according to the amplitude, phase, and period information derived from the strain curves. A 3D curve reconstruction experimental system based on the twisted MCF and optical frequency domain reflectometry (OFDR) is established, and the curve reconstruction performance is evaluated before and after calibration. The results show that, with a reconstruction length of 25 cm, the average tip position error is reduced from 28.12 to 2.50 mm. © 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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收藏
页码：2113 / 2116
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