李尚远

个人信息Personal Information

副研究员

硕士生导师

教师拼音名称:Shangyuan Li

学历:博士研究生毕业

在职信息:在职

毕业院校:清华大学

学术论文

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A Microwave Photonics Equalizer for Overcoming Dispersion-Induced Distortions on Wideband Signals in Radio-Over-Fiber Links

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DOI码:10.1109/JLT.2018.2879483

发表刊物:JOURNAL OF LIGHTWAVE TECHNOLOGY

摘要:Chromatic dispersion (CD) has been considered as a significant issue that needs to he addressed over the past decades. Nowadays, as the bandwidth of radio frequency signals has expanded to multi-gigahertz, CD becomes increasingly troublesome for some wideband signals such as linear frequency modulated waveform (LFMW), which requires a flat amplitude response and a linear phase response. In this paper, we first investigate the CD-induced amplitude distortion and phase distortion that a wideband signal will suffer in traditional double-sideband (DSB) modulated and single-sideband (SSB) modulated radio-over-fiber (RoF) links with an emphasis on the LFMW. The detrimental impacts of the CD-induced distortions are subsequently discussed based on the pulse compression performance. Then, a two-tap microwave photonics equalizer (MPE) model is proposed and its operating principle for overcoming the CD-induced distortions is demonstrated. Based on the model, we design the MPE, which is mainly composed of an integrated dual-polarization dual-parallel Mach-Zehnder modulator and a differential group delay module. In the proofof-concept experiment, the RoF link utilizing the proposed MPE is built, and a 1-10 GHz LFMW is transmitted over the 66.3-km single-mode fiber. Thanks to the MPE, both CD-induced amplitude distortion and phase distortion are successfully compensated. Pulse compression results show that the pulse, compared with the signal transmitted in the SSB-haled link.

第一作者:Han, Guanyu, Li, Shangyuan,测试老师, Haojie, Xue, Xiaoxiao, Zheng, Xiaoping

论文类型:J

文献类型:Article

卷号:37

期号:3

页面范围:736

ISSN号:0733-8724

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