典型文献
Weak RF signal detection with high resolution and no blind zone based on ultra-simple multi-mode optoelectronic oscillation
文献摘要：
Weak RF signal detection with high resolution and no blind zone based on directly modulated multi-mode optoelectronic oscillation has been proposed.The high-sensitivity optical modulators and optical filters are avoided because multi-mode oscillation is obtained based on directly modulating the semiconductor laser at the relaxation oscillation frequency.For the directly modulated optoelectronic oscillator,the detection characteristics such as gain for the RF signal,resolution,noise floor,and sensitivity are firstly analyzed.The experimental results are consistent with the simulated results.For the RF signal of unknown frequency,it can be detected out and amplified by tuning the bias current and delay time of the loop.There is no blind zone within 1-4.5 GHz.The system provides a maximum gain of 17.88 dB for the low-power RF signal.The sensitivity of the system can reach as high as-95 dBm.The properties such as gain dynamic range and power stability are also investigated.The system has potential for weak RF signal detection,especially for the RF signal with unknown frequency.
文献关键词：
中图分类号：
作者姓名：
Xin Zhang;Tao Pu;Yunshan Zhang;Hua Zhou;Lin Lu;Jin Li;Xiangfei Chen;Jilin Zheng
作者机构：
College of Communications Engineering,Army Engineering University of PLA,Nanjing 210007,China;School of Optoelectronic Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Microwave-Photonics Technology Laboratory,National Laboratory of Microstructures&College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China
文献出处：
引用格式：
[1]Xin Zhang;Tao Pu;Yunshan Zhang;Hua Zhou;Lin Lu;Jin Li;Xiangfei Chen;Jilin Zheng-.Weak RF signal detection with high resolution and no blind zone based on ultra-simple multi-mode optoelectronic oscillation)[J].中国光学快报（英文版）,2022(11):110-116
A类：
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Weak,RF,signal,detection,high,resolution,blind,zone,ultra,simple,multi,mode,optoelectronic,oscillation,directly,modulated,has,been,proposed,sensitivity,optical,modulators,filters,are,avoided,because,obtained,modulating,semiconductor,laser,relaxation,frequency,For,oscillator,characteristics,such,gain,noise,floor,firstly,analyzed,experimental,results,consistent,simulated,unknown,can,detected,out,amplified,by,tuning,bias,current,delay,loop,There,within,GHz,system,provides,maximum,low,power,reach,dBm,properties,dynamic,range,stability,also,investigated,potential,weak,especially
AB值：
0.470033
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