Title :
Performance comparisons of 56Gbaud-QPSK and 32Gbaud-16QAM for 200Gbit/s transmission on a 50GHz grid
Author :
Yanzhao Lu ; Liangchuan Li ; Ling Liu ; Zhiyu Xiao ; Yijia Wei ; Liu, Gordon Ning
Author_Institution :
Network Res. Dept., Huawei Technol., Shenzhen, China
Abstract :
This paper demonstrates DAC based 56Gbaud PDM-QPSK transmission for 200Gbit/s, which provides a spectral efficiency of 4 bit/s/Hz on the 50GHz grid. Compared with 32Gbaud-16QAM, it has a better transmission performance.
Keywords :
digital-analogue conversion; optical communication; quadrature amplitude modulation; quadrature phase shift keying; 32Gbaud-16QAM; 56Gbaud PDM-QPSK transmission; DAC; bit rate 200 Gbit/s; frequency 50 GHz; grid; spectral efficiency; Bandwidth; Bit error rate; Optical noise; Optical transmitters; Phase shift keying; Signal to noise ratio;
Conference_Titel :
Optical Fibre Technology, 2014 OptoElectronics and Communication Conference and Australian Conference on
Conference_Location :
Melbourne, VIC
