A Photonic Microwave Frequency Quadrupler With Decoupled Bandwidth and Carrier Frequency for Multi-Octave LFM Signal Generation

被引：6
作者：
Zeng, Henan [1 ,2 ]
Li, Ruoming [1 ]
Li, Wangzhe [1 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2023年 / 41卷 / 09期
关键词：
Linearly frequency modulated signal; microwave frequency quadrupling; microwave photonics;
D O I：
10.1109/JLT.2023.3238424
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：
A photonic microwave frequency quadrupler with decoupled bandwidth and carrier frequency for multi-octave linear frequency modulated (LFM) signal generation is proposed and experimentally demonstrated. The frequency quadrupler contains two phase-correlated photonic mixers incorporated in a single hardware, which has four input ports and an output port. An intermediate frequency (IF) LFM signal, is frequency doubled and up-converted to a radio frequency (RF) LFM signal which has a flipped frequency slope and doubled bandwidth in one photonic mixer. Then the generated RF LFM is heterodyned with the IF LFM in the other photonic mixer. At the output port, a frequency-quadrupled LFM signal, of which the carrier frequency is independent of the IF LFM and tunable, is obtained. Since the bandwidth and the center frequency of the generated signal are decoupled, a multi-octave signal is generated from a sub-octave signal with the proposed photonic-assisted frequency quadrupler.
引用
收藏
页码：2715 / 2722
页数：8
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