A tunable optical frequency comb source using cascaded frequency modulator and Mach-Zehnder modulators

被引：5
|
作者：
Hammadi Y.I. [1 ]
Hmood J.K. [2 ]
Mansour T.S. [3 ]
Harun S.W. [4 ]
机构：
[1] Bilad Alrafidain University College, Diyala
[2] Laser and Optoelectronics Engineering Department, University of Technology, Baghdad
[3] Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad
[4] Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur
来源：
Journal of Optical Communications | 2024年 / 45卷 / 03期
关键词：
frequency modulator; Mach-Zehnder modulator; optical frequency comb; tunable frequency source;
D O I：
10.1515/joc-2022-0013
中图分类号：
学科分类号：
摘要：
In this work, we demonstrate a tunable optical frequency comb (OFC) source based on a cascaded frequency modulator (FM) and two Mach-Zehnder modulators (MZMs). The setup includes one FM and two MZMs, and a sinusoidal RF signal source that directly drive all these modulators. A Flat OFC source with a high number of comb lines, and tunable frequency spacing and center wavelength is analytically modelled and simulated. The results reveal that 51 comb lines with a frequency spacing of 25 GHz are generated when only FM is used. Thirteen of these lines have power variations of 1 dB. Next, by cascading FM with two MZMs, 127 comb lines are obtained. In addition, 101 of these lines have power variations of 1 dB. An optical frequency comb, with tunable frequency spacing ranging from 10 to 40 GHz is successfully generated. Moreover, the center wavelength of the generated OFC can be tuned from 1310 to 1610 nm. © 2022 Walter de Gruyter GmbH, Berlin/Boston.
引用
收藏
页码：467 / 475
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