Flexible Broadband Frequency Hopping Signal Generation Based on a Filter-Free Optoelectronic Conversion Loop

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-01-30 DOI:10.1109/JPHOT.2025.3536459

Xun Wang;Jingjing Hu;Yiying Gu;Xiaozhou Li;Shuai Zu;Dongxu Li

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引用次数: 0

Abstract

We propose and experimentally demonstrate a photonics method for generating broadband frequency hopping (FH) microwave signals based on an optoelectronic conversion (OEC) loop. In the proposed scheme, FH signals are generated after feedback modulation when low-frequency seed pulses are applied to the MZM in the OEC loop. The scheme can achieve a large-scale frequency hopping between S/C/X bands and C/X/Ku frequency bands. The experimental results indicate that 3-level FH signals with frequencies of 3/6/12 and 4/8/16 GHz have been successfully generated. Frequency-hopped linear frequency modulation (FH-LFM) signals from 2.5 GHz to 4.5 GHz, 5 GHz to 9 GHz and 10 GHz to 18 GHz with different chirp rates can also be generated. The achievable time-bandwidth product (TBWP) is as high as 15400. The autocorrelation results indicate that FH-LFM has good pulse compression ability. The pulse width, period and bandwidth of the FH signal can be adjusted flexibly. The proposed system does not require any optical filters or high-frequency RF signal source. It has potential to apply in radar, electronic warfare and wireless communication systems.

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基于无滤波器光电转换环路的柔性宽带跳频信号生成

我们提出并实验证明了一种基于光电转换环路产生宽带跳频（FH）微波信号的光子学方法。在该方案中，将低频种子脉冲施加到OEC环的MZM上，经过反馈调制产生跳频信号。该方案可以实现S/C/X频段和C/X/Ku频段之间的大规模跳频。实验结果表明，成功地产生了频率为3/6/12和4/8/16 GHz的3电平跳频信号。还可以产生2.5 GHz ~ 4.5 GHz、5 GHz ~ 9 GHz、10 GHz ~ 18 GHz不同啁啾速率的跳频线性调频（FH-LFM）信号。可实现的时间带宽积（TBWP）高达15400。自相关结果表明，跳频- lfm具有良好的脉冲压缩能力。跳频信号的脉宽、周期和带宽可以灵活调节。该系统不需要任何光学滤波器或高频射频信号源。它具有应用于雷达、电子战和无线通信系统的潜力。

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

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.