Impact of Chromatic Dispersion Compensation in Single Carrier Two-Dimensional Stokes Vector Direct Detection System

IEEE Photonics Journal

Carl Paquet¹  Ian Woods¹  Stephane Paquet¹  Mohammed Y. S. Sowailem²  Thang M. Hoang²  Mathieu Chagnon²  Mohamed Morsy-Osman²  David V. Plant²  Odile Liboiron-Ladouceur²  Meng Qiu² 

[1] Ciena, Einstein Quebec, Canada;Photonics System Group, Electrical and Computer Engineering Department, McGill University, Montreal, QC, Canada;

关键词: Chromatic dispersion;    Stokes vector direct detection system;    modulation formats.;   

DOI  :  10.1109/JPHOT.2017.2724005

来源: DOAJ

【 摘 要 】

We experimentally demonstrate, aided with mathematical analysis, two methods for chromatic dispersion (CD) compensation for two-dimensional Stokes vector direct detection (2D-SV-DD) system. Results show that the better CD compensation method is dependent on transmission distance and operating symbol rate relative to the digital-toanalog converter (DAC) sampling rate. When 84 GBd 16 QAM signal is generated using an 84 GSps DAC, the bit error rate (BER) after 640 km propagation is ~1.67 × 10^-2 and ~2 × 10^-2 using CD postand precompensation, respectively. When 64 GBd 16 QAM signal is generated at the same DAC sampling rate, the BER at 960 km is ~1.61 × 10^-2 and ~9.8 × 10^-3 using CD postand precompensation, respectively. In addition, our findings reveal that CD precompensation allows for transmission distances greater than 1000 km at which CD postcompensation is no longer viable due to the required training. Finally, enabled by CD precompensation, we report the highest capacity-times-distance products of 591 360 (Gb/s)·km and 614 400 (Gb/s)·km in 2D-SV-DD system using QPSK modulation format and symbol rates of 84 and 64 GBd, respectively. Also, we can achieve 300G transmission for distances below 320 km using 84 GBd 16 QAM signal with BER below hard decision forward error correcting threshold of ~3.8 × 10^-3.

【 授权许可】

Unknown