A 10 GHz high-frequency coupled optoelectronic oscillator for RF/FSO fusion transmission in smoke channels

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2024-10-21 DOI:10.1016/j.optcom.2024.131236

Deqi Li , Peng Lin , Baoqun Li , Qiaochu Yang , Sunde Wang , Silun Du , Jingkai Zhang , Xianzhu Liu , Tianshu Wang , Junda Chen , Chen Liu

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引用次数: 0

Abstract

We proposes and experimentally demonstrates a RF/FSO fusion transmission system under smoke channel. First, an RF and laser-integrated communications payload is designed for RF/FSO fusion links to achieve mutual information backup for both FSO and RF links. Coupled optoelectronic oscillator (COEO) can generate 10.0 GHz low-jitter optical pulses and 10.0 GHz low-phase noise RF signals simultaneously. The measured RF side-mode rejection ratio is 52.16 dB, and the phase noise at 10 kHz offset is about −117.6 dBc/Hz. The experimental results show that COEO has good compatibility in RF/FSO fusion communication and effectively solves the problem of RF/FSO link compatible sharing. Then, we established a RF/FSO fusion transmission system based on a COEO. Taking the complexity of the smoke channel, the RF/FSO link is not switched to achieve simultaneous transmission communication without interruption. The power jitter, signal-to-noise ratio, and bit error rate of RF/FSO links are investigated for different smoke visibility and is further investigated. The experimental results indicate, the fusion RF/FSO system is more reliable under extremely dense smoke conditions based on a COEO, which is significant for the future development of reliable space high-speed information transmission and networking.

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用于烟道射频/FSO 融合传输的 10 GHz 高频耦合光电振荡器

我们提出并实验演示了烟雾信道下的射频/FSO 融合传输系统。首先，为射频/FSO 融合链路设计了射频和激光集成通信有效载荷，以实现 FSO 和射频链路的相互信息备份。耦合光电振荡器（COEO）可同时产生 10.0 GHz 低抖动光脉冲和 10.0 GHz 低相位噪声射频信号。测得的射频侧模抑制比为 52.16 dB，10 kHz 偏移时的相位噪声约为 -117.6 dBc/Hz。实验结果表明，COEO 在射频/FSO 融合通信中具有良好的兼容性，有效解决了射频/FSO 链路兼容共享的问题。随后，我们建立了基于 COEO 的 RF/FSO 融合传输系统。考虑到烟道的复杂性，RF/FSO 链路不切换，实现无中断同步传输通信。研究了不同烟雾能见度下 RF/FSO 链路的功率抖动、信噪比和误码率，并对其进行了进一步研究。实验结果表明，基于 COEO 的 RF/FSO 融合系统在极端浓烟条件下更加可靠，这对未来可靠的空间高速信息传输和网络的发展具有重要意义。

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

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.