A High Linearity Full-duplex Radio over Fiber System

WANG Rui-qiong; FAN Yang-yu; WANG Xin-yuan; TAN Jia-jun; GAO Yong-sheng

doi:10.12263/DZXB.20210268

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A High Linearity Full-duplex Radio over Fiber System

OPTICAL WIRELESS COMMUNICATION AND NETWORKING TECHNOLOGY | 更新时间：2025-12-08

- A High Linearity Full-duplex Radio over Fiber System
- ACTA ELECTRONICA SINICA Vol. 49, Issue 10, Pages: 1913-1919(2021)
- 作者机构：
  
  西北工业大学电子信息学院，陕西西安 710072
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20210268
  CLC： TN29;
- Received：23 February 2021，
  
  Revised：2021-06-18，
  
  Published：25 October 2021
- 稿件说明：
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王瑞琼,樊养余,王鑫圆等.一种高线性度的全双工光载射频系统[J].电子学报,2021,49(10):1913-1919.

WANG Rui-qiong,FAN Yang-yu,WANG Xin-yuan,et al.A High Linearity Full-duplex Radio over Fiber System[J].ACTA ELECTRONICA SINICA,2021,49(10):1913-1919.
王瑞琼,樊养余,王鑫圆等.一种高线性度的全双工光载射频系统[J].电子学报,2021,49(10):1913-1919. DOI： 10.12263/DZXB.20210268.

WANG Rui-qiong,FAN Yang-yu,WANG Xin-yuan,et al.A High Linearity Full-duplex Radio over Fiber System[J].ACTA ELECTRONICA SINICA,2021,49(10):1913-1919. DOI： 10.12263/DZXB.20210268.

摘要

本文提出了一种高线性度的全双工光载射频系统.该系统克服了下行链路三阶交调失真与周期性功率衰落的影响，同时对上行链路进行波长重用，简化了基站的成本和复杂度，实现了高线性度的全双工光载射频系统.实验结果表明，与基于单个马增调制器的常规系统相比，本系统下行链路中三阶交调失真得到明显抑制，克服了光纤色散引起的功率衰落，系统无杂散动态范围提高17dB，宽带信号的星座图和误差矢量幅度改善明显，另外，上行链路可以实现稳定的波长重用及宽带信号传输.

Abstract

In this paper

a full-duplex radio over fiber system with high linearity is proposed. The system overcomes the influence of the third-order intermodulation distortion and the periodic power fading in the downlink. At the same time

wavelength reuse is used in the uplink

which simplifies the complexity of the base station. A full duplex radio over fiber system with high linearity is realized. The experimental results show that compared with the conventional system based on single Mach Zehnder modulator

the third-order intermodulation distortion in the downlink of the proposed system is obviously suppressed and the influence of fiber dispersion is overcome

the spurious free dynamic range of the system is improved by 17dB

and the constellation and error vector amplitude of broadband RF signal are improved significantly. In addition

the uplink can achieve stable wavelength reuse and modulation transmission.

关键词

Keywords

references

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