Flexible multi-dimensional modulation method for elastic optical networks
Flexible multi-dimensional modulation method for elastic optical networks
复制标题
DOI：
10.1016/j.optcom.2015.09.098
复制
发表时间：
2016-01
影响因子：
2.4
通讯作者：
Zilong He;Wentao Liu;Sheping Shi;B. Shen;Xue Chen;Xiqing Gao;Qi Zhang-;Dongdong Shang;Yongning Ji;Yingfeng Liu
中科院分区：
文献类型：
--
作者：
Zilong He;Wentao Liu;Sheping Shi;B. Shen;Xue Chen;Xiqing Gao;Qi Zhang-;Dongdong Shang;Yongning Ji;Yingfeng Liu
我们展示了一种灵活的多维调制方法的弹性光网络。我们比较了灵活的多维调制格式PM-kSC-mQAM与传统的调制格式PM-mQAM使用数值模拟在背靠背和波分复用（WDM）传输（50 GHz间隔）的情况下，在相同的符号速率为32 Gbaud。仿真结果表明，PM-kSC-QPSK和PM-kSC-16 QAM相对于PM-QPSK和PM-16 QAM在频谱效率降低的情况下，可以获得明显的背靠背灵敏度增益。WDM传输仿真结果表明，PM-2SC-QPSK比PM-QPSK传输距离增加了57.5%，PM-2SC-16 QAM比PM-16 QAM传输距离增加了48.5%。此外，我们还对PM-2SC-QPSK、PM-4SC-QPSK、PM-2SC-16 QAM和PM-3SC-16 QAM的背靠背性能进行了实验研究，实验结果与数值模拟吻合较好。
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-2SC-QPSK, PM-4SC-QPSK, PM-2SC-16QAM and PM-3SC-16QAM, and the experimental results agree well with the numerical simulations.