Microwave pulse generation via employing an electric signal modulator to achieve time-domain mode locking in an optoelectronic oscillator

Zeng Zhen; Zhang Lingjie; Zhang Yaowen; Tian Huan; Zhang Zhiyao; Zhang Shangjian; Li Heping; Liu Yong

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Microwave pulse generation via employing an electric signal modulator to achieve time-domain mode locking in an optoelectronic oscillator

机译：微波脉冲产生通过采用电动信号调制器实现光电子振荡器中的时域模式锁定

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An actively mode-locked optoelectronic oscillator (OEO) is proposed and demonstrated to generate chirp-free microwave pulse trains with variable repetition rates. Time-domain mode locking is realized by using an electric signal modulator to achieve amplitude modulation of the generated microwave signal in the OEO cavity. Through setting the externally applied electric signal frequency to be equal to the integral multiple of the free spectral range, a microwave pulse train with a low close-to-carrier phase noise is generated. In the experiment, microwave pulse trains with repetition rates of 179.94 and 360.00 kHz are generated through fundamental mode locking and 2nd-order harmonic mode locking, respectively. Under fundamental mode locking, the phase noise of the actively mode-locked OEO at 100 Hz frequency offset is measured to be 30 dB lower than that in a free-running OEO. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

机译：提出并证明了一种主动锁模光电振荡器（OEO）可以产生具有可变重复率的无啁啾微波脉冲序列。时域锁模通过使用电信号调制器来实现对OEO腔中产生的微波信号的幅度调制。通过将外加电信号频率设置为自由光谱范围的整数倍，可以产生接近载波相位噪声较低的微波脉冲序列。在实验中，通过基波锁模和二次谐波锁模分别产生了重复频率分别为179.94和360.00kHz的微波脉冲序列。在基本模式锁定下，主动锁模OEO在100hz频率偏移下的相位噪声比自由运行OEO低30db。（c）OSA开放获取出版协议条款下的美国2021光学学会

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来源
《Optics Letters》 |2021年第9期|共4页
作者
Zeng Zhen; Zhang Lingjie; Zhang Yaowen; Tian Huan; Zhang Zhiyao; Zhang Shangjian; Li Heping; Liu Yong;
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作者单位

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

Univ Elect Sci &

Technol China Sch Optoelect Sci &

Engn State Key Lab Elect Thin Films &

Integrated Devic Chengdu 610054 Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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Microwave pulse generation via employing an electric signal modulator to achieve time-domain mode locking in an optoelectronic oscillator

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