Application of phase-conjugate beams in beam correction and underwater optical wireless communication subject to surface wave turbulence.

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Frontiers of Optoelectronics Pub Date : 2022-09-14 DOI:10.1007/s12200-022-00039-y

Qi Li, Xiuhua Yuan, Feng Zhou, Zeyu Zhou, Wujie Liu

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引用次数: 1

Abstract

Water surface wave turbulence is one of the factors affecting the performances of underwater optical wireless communication (UOWC) systems. In our research, a phase-conjugate beam was used to correct the beam distortion and enhance the communication performances when a system is subject to surface wave turbulence. The phase-conjugate beam was generated by a phase-conjugate mirror (PCM), and a turbulence generator was used to generate surface wave turbulence in the experiment. We calculated the beam centroid distribution and the results showed that the phase-conjugate beam had a better propagation performance than the distorted beam at the different water depths. The root mean square (RMS) of the beam centroid for the phase-conjugate beam was 11 times less than that for the distorted beam, which meant that the phase-conjugate beam could effectively correct the beam drift. We further investigated the scintillation index and the signal-to-noise ratio (SNR); the results showed that the phase-conjugate beam was able to reduce the scintillation and an obvious improvement in SNR could be obtained. This research has the potential to be applied in UWC.

Abstract Image

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相位共轭波束在波束校正和受表面波湍流影响的水下无线光通信中的应用。

水面波湍流是影响水下光无线通信(UOWC)系统性能的因素之一。在我们的研究中，相位共轭波束用于修正波束畸变，提高系统在表面波湍流作用下的通信性能。相位共轭光束由相位共轭镜(PCM)产生，实验中使用湍流发生器产生表面波湍流。计算了波束质心分布，结果表明，在不同水深下，相位共轭波束比畸变波束具有更好的传播性能。相位共轭光束的光束质心均方根(RMS)比畸变光束的光束质心均方根(RMS)小11倍，表明相位共轭光束可以有效地校正光束漂移。进一步研究了闪烁指数和信噪比(SNR);结果表明，相位共轭光束能够有效地抑制闪烁现象，并能明显提高信噪比。本研究具有在UWC应用的潜力。

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

Frontiers of Optoelectronics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

7.80

自引率

0.00%

发文量

583

期刊介绍： Frontiers of Optoelectronics seeks to provide a multidisciplinary forum for a broad mix of peer-reviewed academic papers in order to promote rapid communication and exchange between researchers in China and abroad. It introduces and reflects significant achievements being made in the field of photonics or optoelectronics. The topics include, but are not limited to, semiconductor optoelectronics, nano-photonics, information photonics, energy photonics, ultrafast photonics, biomedical photonics, nonlinear photonics, fiber optics, laser and terahertz technology and intelligent photonics. The journal publishes reviews, research articles, letters, comments, special issues and so on. Frontiers of Optoelectronics especially encourages papers from new emerging and multidisciplinary areas, papers reflecting the international trends of research and development, and on special topics reporting progress made in the field of optoelectronics. All published papers will reflect the original thoughts of researchers and practitioners on basic theories, design and new technology in optoelectronics. Frontiers of Optoelectronics is strictly peer-reviewed and only accepts original submissions in English. It is a fully OA journal and the APCs are covered by Higher Education Press and Huazhong University of Science and Technology. ● Presents the latest developments in optoelectronics and optics ● Emphasizes the latest developments of new optoelectronic materials, devices, systems and applications ● Covers industrial photonics, information photonics, biomedical photonics, energy photonics, laser and terahertz technology, and more