Optimization of wireless optical communication quality using near-perfect Laguerre-Gaussian beam in the propagating field

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-01-11 DOI:10.1007/s11082-025-08035-0

Shuailing Wang, Jingping Xu, Yaping Yang, Qian Liu, Mingjian Cheng

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引用次数: 0

Abstract

We propose the use of a near-perfect Laguerre-Gaussian beam (NPLGB) as the propagating field, which maintains a fixed beam radius not only at the source plane but also throughout the entire propagation process, unaffected by orbital angular momentum (OAM). Furthermore, the beam radius of NPLGB is less influenced by radial index, hence NPLGB exhibits perfect property for both OAM and radial index. To evaluate the transmission performance of NPLGB, we introduced the centroid ring radius (CRR) as a novel evaluation metric and validated its effectiveness. Furthermore, we explore the application of NPLGB in wireless optical communications and assess its performance in atmospheric turbulence. Our results reveal that NPLGB offers significantly improved transmission quality compared to traditional Laguerre-Gaussian beam, with the received signal largely unaffected by OAM modes or radial index. The CRR framework provides a comprehensive explanation for the behavior of NPLGB at the receiving end. In addition, we investigated the effects of turbulence and beam parameters on the received probability of NPLGB, and discussed the influence of the radial index on the total crosstalk probability of NPLGB. The application of NPLGB will significantly advance the objective of utilizing LGB to achieve unrestricted degrees of freedom in wireless optical communications, and offers valuable insights for the development of next-generation vortex beams.

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利用近乎完美的拉盖尔-高斯光束在传播场中优化无线光通信质量

我们提出使用接近完美的拉盖尔-高斯光束（NPLGB）作为传播场，它不仅在源平面上保持固定的光束半径，而且在整个传播过程中保持固定的光束半径，不受轨道角动量（OAM）的影响。此外，NPLGB的光束半径受径向折射率的影响较小，因此NPLGB在OAM和径向折射率方面都表现出良好的性能。为了评估NPLGB的传输性能，我们引入了质心环半径（CRR）作为一种新的评价指标，并验证了其有效性。此外，我们还探讨了NPLGB在无线光通信中的应用，并评估了其在大气湍流中的性能。我们的研究结果表明，与传统的拉盖尔-高斯光束相比，NPLGB提供了显著改善的传输质量，接收信号在很大程度上不受OAM模式或径向折射率的影响。CRR框架为NPLGB在接收端的行为提供了一个全面的解释。此外，我们还研究了湍流和光束参数对NPLGB接收概率的影响，并讨论了径向指数对NPLGB总串扰概率的影响。NPLGB的应用将极大地推进利用LGB实现无线光通信中不受限制自由度的目标，并为下一代涡旋光束的发展提供有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.