4 &#x00D7; 32-Gbps Block-Wise QPSK 1200-km SSMF Direct Detection Transmission Based on Delta-Sigma Virtual Carrier Generation

Zhuo Chen; Ziqiang Wu; Jiaqi Huang; Shenmao Zhang; Xueyuan Ao; Zhongzhong Wang; Junxiang Ke; Lilin Yi; Qi Yang

doi:10.1109/JPHOT.2019.2953358

IEEE Photonics Journal (Jan 2019)

4 × 32-Gbps Block-Wise QPSK 1200-km SSMF Direct Detection Transmission Based on Delta-Sigma Virtual Carrier Generation

Zhuo Chen,
Ziqiang Wu,
Jiaqi Huang,
Shenmao Zhang,
Xueyuan Ao,
Zhongzhong Wang,
Junxiang Ke,
Lilin Yi,
Qi Yang

Affiliations

Zhuo Chen: ORCiD; School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Ziqiang Wu: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Jiaqi Huang: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Shenmao Zhang: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Xueyuan Ao: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Zhongzhong Wang: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
Junxiang Ke: State Key Lab of Advanced Communication Systems and Networks, Department of Electronics Engineering, Shanghai Jiao Tong University, Shanghai, China
Lilin Yi: ORCiD; State Key Lab of Advanced Communication Systems and Networks, Department of Electronics Engineering, Shanghai Jiao Tong University, Shanghai, China
Qi Yang: ORCiD; School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China

DOI: https://doi.org/10.1109/JPHOT.2019.2953358
Journal volume & issue: Vol. 11, no. 6
pp. 1 – 7

Abstract

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Direct detection (DD) is one of the most attractive solutions for short and medium reach optical fiber transmission in comprehensive consideration of digital signal processing (DSP), power consumption, and cost. Various single side band (SSB) DD techniques have been widely investigated to detect and process the complex signal. In this paper, we propose a novel approach which uses only high-speed digital input/outputs (IO) to generate both quadrature phase shift keying (QPSK) signal and virtual carrier signal. A transmission of 4 × 32 Gb/s QPSK signal over 1200-km standard single mode fiber (SSMF) in block-wise manner has been successfully demonstrated. Only a single polarization in-phase-and-quadrature (IQ) modulator and one single photodiode (PD) are used for each channel. Compared with conventional DSP of coherent detection, the DSP in the proposed scheme is also simplified that only fixed frequency compensation is required without additional phase noise elimination. The overall system complexity has been greatly reduced.

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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