A full duplex FSO transmission system using RZ-4PAM downlink signals with 67% duty cycle and AMI uplink signals

Yu Ni; Shao Yufeng; Wang Anrong; Wang Zhuang; Yang Jie; Tian Qing; Yi Linfang; Yang Qiming; Li Yanlin; Chen Peng; Li Chong; Liu Shuanfan; Zuo Renjie; Yuan Jie

doi:10.1051/itmconf/20224502002

ITM Web of Conferences (Jan 2022)

A full duplex FSO transmission system using RZ-4PAM downlink signals with 67% duty cycle and AMI uplink signals

Yu Ni,
Shao Yufeng,
Wang Anrong,
Wang Zhuang,
Yang Jie,
Tian Qing,
Yi Linfang,
Yang Qiming,
Li Yanlin,
Chen Peng,
Li Chong,
Liu Shuanfan,
Zuo Renjie,
Yuan Jie

Affiliations

Yu Ni: College of Electronic and Information Engineering, Chongqing Three Gorges University
Shao Yufeng: College of Electronic and Information Engineering, Chongqing Three Gorges University
Wang Anrong: College of Electronic and Information Engineering, Chongqing Three Gorges University
Wang Zhuang: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yang Jie: College of Electronic and Information Engineering, Chongqing Three Gorges University
Tian Qing: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yi Linfang: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yang Qiming: College of Electronic and Information Engineering, Chongqing Three Gorges University
Li Yanlin: College of Electronic and Information Engineering, Chongqing Three Gorges University
Chen Peng: College of Electronic and Information Engineering, Chongqing Three Gorges University
Li Chong: College of Electronic and Information Engineering, Chongqing Three Gorges University
Liu Shuanfan: College of Electronic and Information Engineering, Chongqing Three Gorges University
Zuo Renjie: College of Electronic and Information Engineering, Chongqing Three Gorges University
Yuan Jie: College of Electronic and Information Engineering, Chongqing Three Gorges University

DOI: https://doi.org/10.1051/itmconf/20224502002
Journal volume & issue: Vol. 45
p. 02002

Abstract

Read online

To improve the transceiver quality of Free Space Optical (FSO) system and ensure that user access is feasible the network, a high-speed full-duplex 100 meters FSO transmission scheme using 67% duty cycle RZ-4PAM downlink and alternative mark inversion (AMI) uplink signals is designed system. In the downlink, one PAM sequence generator and one Mary pulse generator (MPG) module are used to generate 67% RZ-4PAM optical signals at 10Gbit/s through a Mach-Zehnder intensity modulator (MZM). The upstream AMI signals generator by the pseudo-random binary sequence (PRBS) generator and the precoding process. We have measured optical spectrums, time-domain waveforms and eye diagrams before and after signals transmission by system simulation. The transceiver performance of the downstream RZ-4PAM with 67% duty cycle and upstream AMI optical signals the in the 100m FSO transmission system is analyzed.

Published in ITM Web of Conferences

ISSN: 2271-2097 (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Technology: Technology (General): Industrial engineering. Management engineering: Information technology
Website: http://www.itm-conferences.org/

About the journal

Abstract

Keywords