A Simplified Radio-Over-Fiber System for Over 100-km Long-Reach n-QAM Transmission

Run-Kai Shiu; You-Wei Chen; Peng-Chun Peng; Shang-Jen Su; Guan-Ming Shao; Justin Chiu; Jyun-Wei Li; Gee-Kung Chang

doi:10.1109/JPHOT.2020.2993180

IEEE Photonics Journal (Jan 2020)

A Simplified Radio-Over-Fiber System for Over 100-km Long-Reach n-QAM Transmission

Run-Kai Shiu,
You-Wei Chen,
Peng-Chun Peng,
Shang-Jen Su,
Guan-Ming Shao,
Justin Chiu,
Jyun-Wei Li,
Gee-Kung Chang

Affiliations

Run-Kai Shiu: ORCiD; Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
You-Wei Chen: ORCiD; School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA
Peng-Chun Peng: ORCiD; Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Shang-Jen Su: ORCiD; School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA
Guan-Ming Shao: Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Justin Chiu: Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Jyun-Wei Li: Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
Gee-Kung Chang: School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA

DOI: https://doi.org/10.1109/JPHOT.2020.2993180
Journal volume & issue: Vol. 12, no. 3
pp. 1 – 8

Abstract

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A simplified and cost-effective architecture is proposed and experimentally demonstrated with a millimeter wave (MMW) signal over fiber and free-space wireless transmission. The distributed feedback (DFB) laser is operated in optimized settings after measuring its characteristics and thus the 6 Gbps 64-quadrature amplitude modulation (64-QAM) signal can be successfully transmitted after 20- and 50-km fiber and 1-meter wireless transmission with EVM of 5.98% and 6.87%, respectively. Moreover, the EVM of 10.8% over 100-km long reach is also achieved with the 32-QAM modulation format and data rate of 5 Gbps. The experimental results show that the proposed direct modulation scheme can satisfy applications in metro and rural areas.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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