Flexible multi-dimensional modulation method for elastic optical networks

被引：3
|
作者：
He, Zilong [1 ]
Liu, Wentao [1 ]
Shi, Sheping [2 ]
Shen, Bailin [2 ]
Chen, Xue [1 ]
Gao, Xiqing [1 ]
Zhang, Qi [2 ]
Shang, Dongdong [2 ]
Ji, Yongning [2 ]
Liu, Yingfeng [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] ZTE Corp, Beijing 100191, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2016年 / 359卷
基金：
中国国家自然科学基金;
关键词：
Coherent optical communication; Modulation; PHASE;
D O I：
10.1016/j.optcom.2015.09.098
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a flexible multi dimensional modulation method for elastic optical networks. We compare the flexible multi dimensional modulation formats PM-kSC-mQAM with traditional modulation formats PM-mQAM using numerical simulations in back-to-back and wavelength division multiplexed (WDM) transmission (50 GHz-spaced) scenarios at the same symbol rate of 32 Gbaud. The simulation results show that PM-kSC-QPSK and PM-kSC-16QAM can achieve obvious back-to-back sensitivity gain with respect to PM-QPSK and PM-16QAM at the expense of spectral efficiency reduction. And the WDM transmission simulation results show that PM-2SC-QPSK can achieve 57.5% increase in transmission reach compared to PM-QPSK, and 48.5% increase for PM-2SC-16QAM over PM-16QAM. Furthermore, we also experimentally investigate the back to back performance of PM-25C-QPSK, PM-4SC-QP5K, PM-2SC-16QAM and PM-3SC-16QAM, and the experimental results agree well with the numerical simulations. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：304 / 310
页数：7
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