Measurement and analysis of instantaneous microwave frequency based on an optical frequency comb

被引：7
|
作者：
Wei, Yongfeng [1 ]
Wang, Ximin [1 ]
Miao, Yingxi [1 ]
Chen, Jialiang [1 ]
Wang, Xin [1 ]
Gong, Caili [1 ]
机构：
[1] Inner Mongolia Univ, Sch Elect Informat Engn, Hohhot 010021, Peoples R China
来源：
APPLIED OPTICS | 2022年 / 61卷 / 23期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1364/AO.461175
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A microwave photonics instantaneous frequency measurement scheme with 14 channels based on an optical frequency comb (OFC) is proposed. In this scheme, a 14-line flat OFC is generated by cascading a dual-parallel Mach-Zehnder modulator (DPMZM) with a Mach-Zehnder modulator (MZM). The intercepted microwave signal with multiple-frequency components can be measured by using DPMZM, Fabry-Perot filter (FPF), wavelength division multiplexer (WDM), and optical power detector array. This scheme can measure and analyze the frequency of microwave signals in the ranges of 0.5-13.5 GHz, 13.5-26.5 GHz, and 26.5-39.5 GHz with the measurement accuracy of +/- 0.5 GHz. The reconfigurability of the system can be realized by adjusting the comb-line spacing of the OFC and the free spectral range (FSR) of the FPF. (C) 2022 Optica Publishing Group
引用
收藏
页码：6834 / 6840
页数：7
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