控制自动聚焦啁啾完美拉盖尔-高斯光束减轻大气湍流中的串扰

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-04-03 DOI:10.1007/s11082-025-08142-y

Yangbin Ma, Xinguang Wang, Yangbo Shen, Ben Zhao, Le Wang, Shengmei Zhao

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引用次数: 0

摘要

自动聚焦光束可以有效地缓解大气湍流中的轨道角动量串扰。本文基于完全拉盖尔高斯光束（CPLGB）的传播模型，研究了啁啾因子对啁啾完美拉盖尔高斯光束串扰抑制的影响。结果表明，正一阶啁啾因子能显著促进CPLGB的自动聚焦，增大一阶啁啾因子能有效缓解大气湍流中OAM模式的多模串扰，而正二阶啁啾因子对其影响相对较弱。通过与贝塞尔高斯光束、完美拉盖尔-高斯光束和完美光学涡旋光束的比较，CPLGB在大气湍流中传输时表现出更强的抗湍流能力。我们的研究结果将有助于优化自由空间光（FSO）通信系统的性能。

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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Controlling auto-focusing chirped perfect Laguerre-Gaussian beam to mitigate crosstalk in atmospheric turbulence

Auto-focusing beams can effectively mitigate orbital angular momentum (OAM) crosstalk in atmospheric turbulence. In this paper, we focus on the effect of the chirp factor on the crosstalk mitigation of chirped perfect Laguerre-Gaussian beam (CPLGB) based on the propagation model of CPLGB. The results demonstrate that a positive first-order chirp factor can significantly promote the auto-focusing of CPLGB, and increasing it can effectively mitigate the intermodal crosstalk of OAM modes in atmospheric turbulence, whereas a positive second-order chirp factor has a relatively weak effect on them. By comparing with Bessel Gaussian beam, perfect Laguerre-Gaussian beam, and perfect optical vortex beam, the CPLGB shows superior turbulence resistance when transmitted in atmospheric turbulence. Our results will be useful for optimizing the performance of free-space optical (FSO) communication systems with CPLGBs.

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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.