Flat optical frequency comb generation based on a dual-parallel Mach-Zehnder modulator and a single recirculation frequency shift loop

被引：10
|
作者：
Li, Dan [1 ]
Wu, Shibao [1 ]
Liu, Yu [1 ]
Guo, Yifeng [1 ]
机构：
[1] Shanghai Univ, Key Lab Specially Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China
来源：
APPLIED OPTICS | 2020年 / 59卷 / 07期
基金：
中国国家自然科学基金; 上海市科技启明星计划;
关键词：
Optical materials - Light modulation - Light modulators - Optical signal processing - Signal to noise ratio;
D O I：
10.1364/AO.381880
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
To generate a flat optical frequency comb (OFC), a new scheme based on a dual-parallel Mach-Zehnder modulator and a single recirculation frequency shift loop is proposed and analyzed. Compared with the traditional single loop recirculation frequency shift method, the quantity of comb lines is doubled, and the comb flatness is better when the number of cycles is the same. The theoretical analysis model is established, and the simulation results show that a 111-line OFC with frequency spacing of 10 GHz, flatness of 1.32 dB, and optical signal to noise ratio of 27.4 dB can be obtained by adopting the proposed scheme. (C) 2020 Optical Society of America
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页码：1916 / 1923
页数：8
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