Generation of short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator.

IF 3.1 2区物理与天体物理 Q2 OPTICS Optics letters Pub Date : 2024-10-01 DOI:10.1364/OL.540176

Jian Su, Ruihuan Wu, Bo Li, Weiyi Hong, Shengde Liu, Hongzhan Liu

引用次数: 0

Abstract

A novel approach, to the best of our knowledge, for generating short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator (HML-OEO) is proposed and demonstrated. In the proposed scheme, a saturable absorber (SA) device is inserted into the active mode-locked OEO (AML-OEO) to compress the pulse width of the microwave pulse trains. Numerical simulations and experimental results show that the HML-OEO generates a short microwave pulse train with a repetition rate of 98.994 kHz through fundamental frequency mode locking, and its pulse width is compressed by about 50% compared to the AML-OEO. Additionally, in the experiment, microwave pulse trains with different repetition rates are generated by second-, third-, fourth-, and fifth-order harmonic mode locking, respectively. Compared to the AML-OEO, the HML-OEO achieves pulse compression effects of 49.3%, 49.8%, 49.4%, and 49.9%, respectively. Notably, compared to the AML-OEO, the proposed scheme also exhibits outstanding performance in frequency stability.

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基于混合模式锁定光电振荡器的短微波脉冲串的产生。

据我们所知，我们提出并演示了一种基于混合锁模光电振荡器（HML-OEO）产生短微波脉冲序列的新方法。在所提出的方案中，有源锁模光电振荡器（AML-OEO）中插入了一个可饱和吸收器（SA）器件，以压缩微波脉冲序列的脉冲宽度。数值模拟和实验结果表明，HML-OEO 通过基频模式锁定产生了重复率为 98.994 kHz 的短微波脉冲序列，其脉冲宽度比 AML-OEO 压缩了约 50%。此外，实验中还通过二阶、三阶、四阶和五阶谐波锁模分别产生了不同重复率的微波脉冲串。与 AML-OEO 相比，HML-OEO 的脉冲压缩效果分别为 49.3%、49.8%、49.4% 和 49.9%。值得注意的是，与 AML-OEO 相比，所提出的方案在频率稳定性方面也表现出色。

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 letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.