Sub-Symbol-Rate Sampling of Super-Nyquist Signals
Conference: ECOC 2016 - 42nd European Conference on Optical Communication
09/18/2016 - 09/22/2016 at Düsseldorf, Deutschland
Proceedings: ECOC 2016
Pages: 3Language: englishTyp: PDF
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Authors:
Xu, Cheng; Gao, Guanjun; Zhang, Jie; Chen, Sai (State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China)
Luo, Ming; Hu, Rong (State Key Laboratory of Optical Communications Technologies and Networks, Wuhan, 430074, China)
Abstract:
We demonstrate 12-Gbaud WDM PDM-QPSK transmission with 10GHz channel spacing and only 9.6-GSa/s ADC sampling rate. By using 4PB shaping with MLSE, the sampling rate can be reduced to 0.8-times symbol-rate without OSNR penalty, compared with that of 2-times symbol-rate.