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9 November 2018 Generation of tunable and ultra-broadband microwave frequency combs
Xiao-Qin Xu, Li Fan, Guang-Qiong Xia, Zheng-Mao Wu
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Proceedings Volume 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V; 108261K (2018) https://doi.org/10.1117/12.2502243
Event: SPIE/COS Photonics Asia, 2018, Beijing, China
Abstract
A system for generating ultra-broadband microwave frequency combs (MFCs) is proposed and investigated. In such a system, a current modulated distributed feedback semiconductor laser (DFB-SL) is utilized to generate a seed resource of MFC, whose comb space can be tuned but bandwidth is relatively narrow. Then, the seed resource of MFC is injected into another DFB-SL for enhancing the bandwidth. The results demonstrate that, after being injected into another DFB-SL, the bandwidth of seed resource of the MFC can be enhanced greatly, and the MFC with bandwidth over 70 GHz can be obtained under suitable injection parameters.
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Xiao-Qin Xu, Li Fan, Guang-Qiong Xia, and Zheng-Mao Wu "Generation of tunable and ultra-broadband microwave frequency combs", Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108261K (9 November 2018); https://doi.org/10.1117/12.2502243
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KEYWORDS
Modulation
Microwave radiation
Frequency combs
Semiconductor lasers
Nonlinear dynamics
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