Design of Multi-Core Hollow-Core Photonic Bandgap Fibers

IF 4.1 1区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Lightwave Technology Pub Date : 2024-10-23 DOI:10.1109/JLT.2024.3485160

Yunhao Zhu;Chuanfei Yao;Xuan Wang;Guochuan Ren;Shu Liu;Jiaqian Si;Pingxue Li

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Abstract

Hollow-core photonic bandgap fibers (HC-PBFs) demonstrate exceptional performance with high damage threshold, low nonlinearity, low thermal sensitivity and ultralow bending loss. However, the spatial efficiency of HC-PBFs is constrained by the absence of the multi-core structure. In this study, we present a detailed proposal and design of multi-core HC-PBFs for the first time. The structure model of multi-core HC-PBFs are constructed and the structure parameters are optimized by the loss, mode, coupling, bending characteristics based on offset-core, scaling-core, and dual-core three structure models. Finally, three kinds of multi-core HC-PBFs structures including homogeneous weakly-coupled, heterogeneous weakly-coupled, and strongly-coupled are designed with comprehensive structure and performance parameters. Simulation results indicate low loss, quasi single-mode, low crosstalk, negligible bending loss, and remarkable multi-core guiding performance. The introduction of a multi-core structure expands the potential applications of HC-PBFs in fiber communications and long-haul miniaturized fiber optic gyroscopes, high power delivery, fiber sensing, etc.

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多芯空心光子带隙光纤的设计

空心光子带隙光纤具有高损伤阈值、低非线性、低热敏性和超低弯曲损耗等特点。然而，HC-PBFs的空间效率受到多核结构缺失的限制。在这项研究中，我们首次提出了多核hc - pbf的详细方案和设计。基于偏芯、缩芯和双芯三种结构模型，构建了多芯HC-PBFs的结构模型，并根据损耗、模态、耦合、弯曲特性对结构参数进行了优化。最后，设计了均匀弱耦合、非均匀弱耦合和强耦合三种多核HC-PBFs结构，并综合了结构和性能参数。仿真结果表明，该系统具有低损耗、准单模、低串扰、弯曲损耗可忽略不计、多芯导引性能优异等特点。多核结构的引入扩大了HC-PBFs在光纤通信和远程小型化光纤陀螺仪、高功率传输、光纤传感等方面的潜在应用。

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来源期刊

Journal of Lightwave Technology 工程技术-工程：电子与电气

CiteScore

9.40

自引率

14.90%

发文量

936

审稿时长

3.9 months

期刊介绍： The Journal of Lightwave Technology is comprised of original contributions, both regular papers and letters, covering work in all aspects of optical guided-wave science, technology, and engineering. Manuscripts are solicited which report original theoretical and/or experimental results which advance the technological base of guided-wave technology. Tutorial and review papers are by invitation only. Topics of interest include the following: fiber and cable technologies, active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; and systems, subsystems, new applications and unique field trials. System oriented manuscripts should be concerned with systems which perform a function not previously available, out-perform previously established systems, or represent enhancements in the state of the art in general.

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