Dynamic Range Improvement of a Microwave Photonic Link Based on Brillouin Processing

被引：10
|
作者：
Zhu, Wenwu [1 ]
Hu, Jingjing [1 ]
Gu, Yiying [1 ]
Fan, Feng [1 ]
Kang, Zijian [1 ]
Han, Xiuyou [1 ]
Zhao, Mingshan [1 ]
机构：
[1] Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Microwave photonic link (MPL); stimulated brillouin scattering (SBS); spurious-free dynamic range (SFDR); MACH-ZEHNDER MODULATOR; BAND;
D O I：
10.1109/LPT.2016.2615065
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel method to improve the spurious-free dynamic range (SFDR) of a microwave photonic link based on stimulated Brillouin scattering (SBS) processing is proposed and experimentally demonstrated. In the proposed system, an optical single-sideband with suppressed carrier (SSB-SC) signal is generated using a dual-parallel Mach-Zehnder modulator (MZM) by biasing its two sub-MZMs at minimum transmission point and the parent MZM at quadrature transmission point. In order to generate SBS, the SSB-SC signal is amplified and injected into a length of dispersion-shifted fiber where the MPL's double-sideband optical signals are transmitted. Due to the SBS effect, a phase shift is induced to MPL's optical carrier band, and hence, the third-order intermodulation distortion (IMD3) components originated from two different sources can cancel each other. Experimental results show that the SFDR of the link is improved by 10.3 dB, and the IMD3 is reduced by more than 23 dB.
引用
收藏
页码：2681 / 2684
页数：4
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