Photonic Multiple Microwave Frequency Measurement System with Single-Branch Detection Based on Polarization Interference

被引：3
作者：
Zhu, Wei [1 ,2 ]
Li, Jing [1 ,2 ]
Yan, Miaoxia [1 ,2 ]
Pei, Li [1 ,2 ]
Ning, Tigang [1 ,2 ]
Zheng, Jingjing [1 ,2 ]
Wang, Jianshuai [1 ,2 ]
机构：
[1] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Key Lab All Opt Network & Adv Telecommun Network E, Beijing 100044, Peoples R China
来源：
ELECTRONICS | 2023年 / 12卷 / 02期
关键词：
microwave photonics; microwave frequency measurement; single-branch detection; WIDE-BAND; CHANNELIZER;
D O I：
10.3390/electronics12020455
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A photonic microwave frequency measurement system with single-branch detection based on polarization interference is proposed. In this scheme, a 15-line non-flat optical frequency comb (OFC) based on sawtooth signal modulation via a Mach-Zehnder modulator is generated. The intercepted microwave signal with multiple-frequency components can be measured by frequency down-conversion with this simple structure. This system can measure the multi-tone microwave signals in real time. The single-branch detection makes the system a simple and compact structure and avoids the unbalanced variation, as in a two-branches scheme. The blind area of the system can be solved by adjusting the comb-line spacing of the OFC. A simulation is carried out and related discussion is given. The result reveals that it can measure multi-tone microwave signals with a resolution of less than 2 MHz over 0.1-12 GHz.
引用
收藏
页数：14
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