Zhang Junwen, Yu Jianjun, Chi Nan
Department of Communication Science and Engineering, and Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, 220 Handan Road, Shanghai 200433, China.
ZTE (TX) Inc, Morristown, NJ 07960, USA.
Sci Rep. 2015 Sep 1;5:13649. doi: 10.1038/srep13649.
All optical method is considered as a promising technique for high symbol rate Nyquist signal generation, which has attracted a lot of research interests for high spectral-efficiency and high-capacity optical communication system. In this paper, we extend our previous work and report the fully experimental demonstration of polarization-division multiplexed (PDM) all-optical Nyquist signal generation based on Sinc-shaped Nyquist pulse with advanced modulation formats, fiber-transmission and single-receiver full-band coherent detection. Using this scheme, we have successfully demonstrated the generation, fiber transmission and single-receiver full-band coherent detection of all-optical Nyquist PDM-QPSK and PDM-16QAM signals up to 125-GBaud. 1-Tb/s single-carrier PDM-16QAM signal generation and full-band coherent detection is realized, which shows the advantage and feasibility of the single-carrier all-optical Nyquist signals.
全光方法被认为是一种用于产生高符号率奈奎斯特信号的有前景的技术，它已经引起了很多针对高光谱效率和高容量光通信系统的研究兴趣。在本文中，我们扩展了我们之前的工作，并报告了基于具有先进调制格式、光纤传输和单接收机全波段相干检测的Sinc形奈奎斯特脉冲的偏振复用（PDM）全光奈奎斯特信号产生的完整实验演示。使用该方案，我们成功演示了高达125GBaud的全光奈奎斯特PDM-QPSK和PDM-16QAM信号的产生、光纤传输和单接收机全波段相干检测。实现了1Tb/s单载波PDM-16QAM信号的产生和全波段相干检测，这展示了单载波全光奈奎斯特信号的优势和可行性。
