Vortex-Beam Multiplexing Emitter Using Advanced Manufactured Leaky Cables

IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Photonics Research Pub Date : 2024-05-26 DOI:10.1002/adpr.202400001
Feiyang Deng, Kwai-Man Luk, Wenjian Sun, Ka Fai Chan
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Abstract

Although orbital angular momentum (OAM) is extensively explored and researched in various scientific domains, its practical application in wireless communications still faces numerous challenges. Notably, existing OAM beam generation technologies need to meet the diversified demands of modern wireless communication, such as miniaturization, cost-effectiveness, and system integration. Driven by the immense potential of OAM in communication systems, in this work, an innovative method based on leaky cables capable of simultaneously generating multiple vortex beams, overcoming a series of implementation issues associated with multiplexing emitters, is introduced. A design prototype is fabricated and tested, and the measurement results align closely with the simulations, validating the multifunctionality and practicality of the method. Moreover, the proposed strategy can seamlessly extend to optical frequencies using the concept of leaky fibers. In this method, not only efficient spatial utilization and excellent isolation are realized but also high cost-effectiveness is possessed. Compared to previous strategies, this technique may have an impact on simplifying the establishment of communication system platforms based on OAM multiplexing.

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使用先进制造泄漏电缆的涡束复用发射器
虽然轨道角动量(OAM)在各个科学领域都得到了广泛的探索和研究,但其在无线通信领域的实际应用仍面临诸多挑战。值得注意的是,现有的轨道角动量波束生成技术需要满足现代无线通信的多样化需求,如微型化、成本效益和系统集成。鉴于 OAM 在通信系统中的巨大潜力,本文介绍了一种基于泄漏电缆的创新方法,该方法能够同时产生多个涡旋波束,克服了与多路发射器相关的一系列实施问题。我们制作并测试了设计原型,测量结果与模拟结果非常吻合,验证了该方法的多功能性和实用性。此外,利用泄漏光纤的概念,所提出的策略可以无缝扩展到光学频率。在这种方法中,不仅实现了高效的空间利用和出色的隔离,还具有很高的成本效益。与之前的策略相比,该技术可能会对简化基于 OAM 复用的通信系统平台的建立产生影响。
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