Prof. Fuyu Gao Profile

Prof. Fuyu Gao

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Proceedings Article | 18 December 2023 Paper

2D structural modeling method of hollow-core photonic bandgap fibers based on feature points location

Yunhao Zhu, Ningfang Song, Fuyu Gao, Xiaobin Xu

Proceedings Volume 12968, 129680P (2023) https://doi.org/10.1117/12.3003988

KEYWORDS: Structured optical fibers, Modeling, Fabrication, Image processing, Fiber optics, Photonic crystal fibers, Feature extraction

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The accurate and adjustable structural model of hollow-core photonic bandgap fibers (HC-PBFs) is crucial for design and fabrication of high-performance HC-PBFs. The traditional modeling method based on air holes or silica struts has non-negligible structural differences and few adjustable parameters degree of freedom. The 2D structural modeling method of HC-PBFs based on feature points location is proposed. The ideal structure and common distorted structure of HC-PBFs are constructed by this method before fiber fabrication. The scale and scope of irregularities and distortions are continuously tunable. Meanwhile, the realistic HC-PBFs structure and homemade HC-PBFs are reconstructed by this method after fiber fabrication. The universality, robustness, and accuracy of this method are verified successfully according to the result of contrast between model and realistic structure. According to the simulated result from this model, the modification could be conducted precisely before and after fiber fabrication. Thus, the overall manufacturing process of HC-PBFs is considerably accelerated.

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