ZTE Communications ›› 2019, Vol. 17 ›› Issue (3): 50-55.DOI: 10.12142/ZTECOM.201903008
• Research Paper • Previous Articles Next Articles
WANG Jia, ZHAO Yilong, HUANG Xin, HE Guangqiang
Received:
2018-08-31
Online:
2019-09-29
Published:
2019-12-06
About author:
WANG Jia (jwang_wj@sjtu.edu.cn) received her B.S. degree in communication engineering from Nanjing Tech University, China in 2017. She is currently a postgraduate in the School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, China. Her main research interest is nonlinear optics.|ZHAO Yilong is pursuing his bachelor degree in electronic science and technology at Shanghai Jiao Tong University, China. His research interests include fiber nonlinearity mitigation algorithm and artificial intelligence.|HUANG Xin is pursuing his bachelor degree in information engineering at Shanghai Jiao Tong University, China. His research interests include optical communication, nonlinear photonics, and embedded system.|HE Guangqiang received his Ph.D. degree in communication and information system from Shanghai Jiao Tong University, China in 2006. He joined the Department of Electronic Engineering, Shanghai Jiao Tong University as a lecturer in 2006. From 2009 to 2010, he was a visiting scientist in Department of Physics and Astronomy, University of Rochester, New York, USA. Since December 2011, he has been an associate professor in the Department of Electronic Engineering, Shanghai Jiao Tong University. He has published over 50 SCI papers and held 5 patents. His research interests include quantum information processing, quantum entanglement, quantum cryptography, and nonlinear optics.
WANG Jia, ZHAO Yilong, HUANG Xin, HE Guangqiang. High Speed Polarization-Division Multiplexing Transmissions Based on the Nonlinear Fourier Transform[J]. ZTE Communications, 2019, 17(3): 50-55.
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URL: http://zte.magtechjournal.com/EN/10.12142/ZTECOM.201903008
Channels | Baud rate /Gbaud | Guard interval /ns | Modulation format | Bandwidth /GHz | Transmission rate /(Gbits/s) | Spectral efficiency /(bits/s/Hz) | Distance /km | Q-factor |
---|---|---|---|---|---|---|---|---|
32 | 0.5 | 4 | 64-QAM | 16 | 64 | 4 | 1 200 | 6.234 |
64 | 0.5 | 8 | 64-QAM | 32 | 76.8 | 2.4 | 1 200 | 7.405 |
128 | 0.5 | 12 | 64-QAM | 64 | 109.7 | 1.71 | 1 200 | 6.751 |
128 | 0.5 | 8 | 64-QAM | 64 | 153.6 | 2.4 | 960 | 8.195 |
Table 1 The parameters used in different PDM-NFDM transmission systems
Channels | Baud rate /Gbaud | Guard interval /ns | Modulation format | Bandwidth /GHz | Transmission rate /(Gbits/s) | Spectral efficiency /(bits/s/Hz) | Distance /km | Q-factor |
---|---|---|---|---|---|---|---|---|
32 | 0.5 | 4 | 64-QAM | 16 | 64 | 4 | 1 200 | 6.234 |
64 | 0.5 | 8 | 64-QAM | 32 | 76.8 | 2.4 | 1 200 | 7.405 |
128 | 0.5 | 12 | 64-QAM | 64 | 109.7 | 1.71 | 1 200 | 6.751 |
128 | 0.5 | 8 | 64-QAM | 64 | 153.6 | 2.4 | 960 | 8.195 |
Figure 2. The constellation diagram at the distance of 960 km for the case of 32 subcarriers (left column) and 128 subcarriers (right column); a) linewidth=0, w/o carrier recovery; b) linewidth=1 kHz, w/o carrier recovery; c) linewidth=1 kHz, with carrier recovery.
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