用于THz通信的微结构光纤链路及其无限印刷制造
Microstructured fiber links for THz communications and their fabrication using infinity printing
摘要：
在这项工作中，探索了一种新的无限3D打印技术，以制造连续的多米长的低损耗近零色散悬芯聚丙烯光纤应用于太赫兹（THz）通信。特别注意使用低损耗聚丙烯塑料进行3D打印的工艺参数优化。使用标准和无限3D打印机3D打印了三种微结构THz光纤，并对光纤进行了深入的理论和实验比较。实验表明，在128 GHz下工作的三种光纤的传输损耗（功率）分别为4.79 dB/m，17.34 dB/m和11.13 dB/m。对于相应的三种光纤类型的长度为2米，0.75米和1.6米的BER远低于前向纠错限制（10-3）的信号传输进行了观察，并实现了无差错传输的比特率高达5.2 Gbps。光纤近场的太赫兹成像用于可视化模式分布和研究最佳光纤激发条件。因此，有效开发的单模高光学性能光纤的基模屏蔽环境的能力、机械鲁棒性和易于处理性使其成为即将到来的光纤辅助THz通信的优秀候选者。此外，新型的基于熔融沉积成型（FDM）的无限打印技术允许使用先进的热塑性复合材料连续制造复杂横向几何形状的无限长光纤，在我们看来，这将成为先进太赫兹光纤制造的关键制造技术。
英文摘要：
In this work, a novel infinity 3D printing technique is explored to fabricate continuous multi-meter-long low-loss near-zero dispersion suspended-core polypropylene fibers for application in terahertz (THz) communications. Particular attention is paid to process parameter optimization for 3D printing with low-loss polypropylene plastic. Three microstructured THz fibers were 3D printed using the standard and infinity 3D printers, and an in-depth theoretical and experimental comparison between the fibers were carried out. Transmission losses (by power) of 4.79 dB/m, 17.34 dB/m and 11.13 dB/m are experimentally demonstrated for the three fibers operating at 128 GHz. Signal transmission with BER far below the forward error correction limit (10-3) for the corresponding three fiber types of lengths of 2 m, 0.75 m and 1.6 m are observed, and an error-free transmission is realized at the bit rates up to 5.2 Gbps. THz imaging of the fiber near-field is used to visualize modal distributions and study optimal fiber excitation conditions. The ability of shielding the fundamental mode from the environment, mechanical robustness and ease of handling of thus developed effectively single-mode high optical performance fibers make them excellent candidates for upcoming fiber-assisted THz communications. Additionally, novel fused deposition modeling (FDM)-based infinity printing technique allows continuous fabrication of unlimited in length fibers of complex transverse geometries using advanced thermoplastic composites, which, in our opinion, is poised to become a key fabrication technique for advanced terahertz fiber manufacturing.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
