High-gain narrowband radio frequency signal amplifier based on a dual-loop optoelectronic oscillator

被引：7

作者：

Wang, Xiaoyi ^{[1
,2
]}

Wu, Ruihuan ^{[1
,2
]}

Li, Bo ^{[1
,2
]}

Wang, Ziyang ^{[1
,2
]}

Liu, Yue ^{[1
,2
]}

Yuan, Jia ^{[1
,2
]}

Guo, Jianping ^{[1
,2
,3
]}

Liu, Hongzhan ^{[1
,2
]}

机构：

[1] Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Peoples R China

[2] South China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangzhou 510006, Peoples R China

[3] South China Normal Univ, Lab Photon Informat Technol, Guangzhou 510006, Peoples R China

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Dual loops - High gain - Low power radios - Narrow bands - Narrowband radios - Oscillation mode - Oscillation state - Radiofrequency signals - Signal amplifications - Signal amplifiers;

D O I：

10.1364/OE.454634

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel photonic-assisted method for radio frequency (RF) signal amplification with high-gain and narrowband based on a dual-loop optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. In the proposed system, the low-power RF signal is injected into a dual-loop OEO which is below the threshold oscillation state. And the maximum gain is obtained when the frequency of the RF signal matches with the potential oscillation mode of the dual-loop OEO. The approach provides an average gain greater than 22 dB for the RF signal which matches with oscillation mode. After amplification, the signal-to-noise ratio (SNR) turns out to be 40 dB. Furthermore, the 3 dB bandwidth of the suggested system can be narrower than 1.2 kHz which can effectively remove the out-of-band noise and spurious effects. Meanwhile, the performance of sensitivity and phase noise are also investigated. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：13994 / 14001

页数：8

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