Photonic-assisted frequency downconverter with self-interference cancellation and fiber dispersion elimination based on stimulated Brillouin scattering

被引：4

作者：

Fan, Xiaojie ^{[1
,2
,3
]}

Chen, Yinfang ^{[1
,2
,3
]}

Cao, Xuhua ^{[1
,2
,3
]}

Zhu, Sha ^{[4
]}

Li, Ming ^{[1
,2
,3
]}

Zhu, Ninghua ^{[1
,2
,3
]}

Li, Wei ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelelctron, Beijing 100083, Peoples R China

[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100190, Peoples R China

[4] Beijing Univ Technol, Coll Microelect, Fac InformationTechnol, Beijing 100124, Peoples R China

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 17期

基金：

中国国家自然科学基金;

关键词：

BAND; SYSTEM;

D O I：

10.1364/OE.463231

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A photonic-assisted frequency downconverter with self-interference cancellation and fiber dispersion elimination is proposed for in-band full-duplex (IBFD) radio-over-fiber (ROF) systems based on stimulated Brillouin scattering. In this work, a dual-polarization Mach-Zehnder modulator (DPol-MZM) is employed to cancel the self-interference signal in the optical domain, thus the proposed system has a large operation bandwidth without the limitation of the electrical bottleneck. Meanwhile, a widely tunable microwave photonic filter (MPF) based on stimulated Brillouin scattering (SBS) is constructed to perform carrier-suppressed single-sideband modulation of LO. Therefore, the proposed photonic frequency downconverter is naturally free from fiber dispersion. Furthermore, thanks to the characteristics of the SBS-based MPF, such as large out-of-band rejection ratio, high resolution and wideband tunability, the proposed system has a high flexibility and downconversion efficiency, which is of great significance for IBFD ROF systems. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：30149 / 30163

页数：15

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