Harmonically Fourier Domain Mode-Locked Optoelectronic Oscillator

被引：38
作者：
Hao, Tengfei [1 ,2 ]
Tang, Jian [1 ,2 ]
Li, Wei [1 ,2 ]
Zhu, Ninghua [1 ,2 ]
Li, Ming [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2019年 / 31卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Optoelectronic oscillator; Fourier domain mode locking; microwave generation; microwave photonics; TIME-BANDWIDTH PRODUCT; WAVE-FORM GENERATION; PHASE-MODULATION; FREQUENCY; DEAMPLIFICATION;
D O I：
10.1109/LPT.2019.2897124
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We experimentally demonstrate a harmonically Fourier domain mode-locked optoelectronic oscillator (FDML OEO). Harmonic Fourier domain mode locking operation is achieved when the cavity round-trip time is equal to integer multiples of the scanning period of the filter in the OEO loop. Compared with a fundamentally FDML OEO, frequency scanning microwave signals with increased tuning speed and large bandwidth can be easily generated by the proposed harmonically FDML OEO, which can find applications in spread-spectrum communication and modern radar systems. Up to fourth order, harmonic Fourier domain mode locking operation is achieved in the experiment. The time-bandwidth product of the harmonically FDML OEO is as large as tens of thousands. The maximum chirp rate of the generated X-band linearly chirped microwave waveform is 0.725 GHz/mu s, which is four times higher than that of the fundamentally FDML OEO.
引用
收藏
页码：427 / 430
页数：4
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