利用混合波长模式分复用优化低地球轨道上 20 Gbps 的地对卫星自由空间光通信

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physica Scripta Pub Date : 2024-09-18 DOI:10.1088/1402-4896/ad78c4

Lina Marlina, Shofuro Afifah, Shien-Kuei Liaw, Pei-Jun Lee and Hiroki Kishikawa

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引用次数: 0

摘要

近十年来，高速自由空间光学（FSO）通信已成为低地球轨道（LEO）地区一项前景广阔的技术。在本文中，我们模拟了 20 Gbps 单工地对地卫星通信，通信波长各不相同，发射机波束指向误差在 0.1 到 2.5 urad 之间。我们选择了 C 波段波长，并使用带有 16 个通道的非归零（NRZ）脉冲发生器和采用赫米特-高斯（HG）模式的混合波分复用（WDM-MDM）技术来改变指向误差。本文讨论了波束指向误差和接收器孔径的影响。发射器波束指向误差为 2.5 urad 时，可在 1000 千米和 1500 千米的距离上正常工作，误码率分别为 1.41 × 10-6 和 3.56 × 10-5。在接收器孔径为 100 厘米的基础上，它成功地在低地球轨道区域实现了 2.4 × 10-8 的误码率值和清晰的眼图。

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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Optimizing 20 Gbps of ground-to-satellite free-space optical communication in low earth orbit with hybrid wavelength-mode division multiplexing

High-speed free-space optical (FSO) communication has emerged as a promising technology for low earth orbit (LEO) region in the last decade. In this paper, we simulate 20 Gbps simplex ground-to-satellite with various wavelengths and transmitter beam pointing error of 0.1 to 2.5 urad. The C-band wavelength is chosen, and a non-return-zero (NRZ) pulse generator with 16 channels hybrid wavelength-mode division multiplexing (WDM-MDM) technique employing Hermite-Gaussian (HG) modes is used to vary the pointing error. The effect of beam pointing error and receiver aperture diameter was discussed in this paper. A transmitter beam pointing error of 2.5 urad can work appropriately at distances of 1000 km and 1500 km, with a BER value of 1.41 × 10−6 and 3.56 × 10−5, respectively. Based on the receiver aperture diameter of 100 cm, it successfully achieves a BER value of 2.4 × 10−8 at the LEO region and a clear eye diagram.

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来源期刊

Physica Scripta 物理-物理：综合

CiteScore

3.70

自引率

3.40%

发文量

782

审稿时长

4.5 months

期刊介绍： Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.