High Linearity Microwave Photonic Up-Conversion System Based on Parallel Dual-Drive Mach-Zehnder Modulators

被引：2
|
作者：
Wang, Weiheng [1 ]
Bai, Yu [1 ]
Fu, Shuanglin [1 ]
Su, Xinxin [1 ]
Gu, Yiying [1 ]
Chi, Hao [2 ]
Zhao, Mingshan [1 ]
Han, Xiuyou [1 ]
机构：
[1] Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China
[2] Hangzhou Dianzi Univ, Sch Commun Engn, Hangzhou 310018, Peoples R China
来源：
PHOTONICS | 2022年 / 9卷 / 04期
关键词：
microwave photonics; frequency conversion; spurious-free dynamic range; DOWNCONVERSION; SUPPRESSION; MIXER; LINK;
D O I：
10.3390/photonics9040236
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A large dynamic frequency up-conversion scheme based on parallel dual-drive Mach-Zehnder modulators (DD-MZM) and balance detection is proposed and demonstrated experimentally. By optimizing the distribution ratio of the optical carrier power and the IF signal power between the two DD-MZMs, the third-order intermodulation components in two sub-links cancel each other upon the balanced photodetector. The measured results show that the large spurious-free dynamic range of 112.3 dB.Hz(4/5) is obtained for an intermediate frequency signal of 2 GHz up-converted to 18 GHz, which is a 14.8 dB enhancement compared with the traditional carrier suppression double-sideband modulation mixer. The frequency up-conversion performance of the established system for the broadband signal is measured with the results demonstrating the feasibility of the proposed optimization scheme.
引用
收藏
页数：9
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