@article{rosa_parahyba_diniz_ribeiro_oliveira_2013,  title={Nonlinear effects compensation in Optical Coherent PDM-QPSK Systems},  volume={12},  ISSN={2179-1074},  url={https://doi.org/10.1590/S2179-10742013000200037},  DOI={10.1590/S2179-10742013000200037},  number={2},  journal={Journal of Microwaves, Optoelectronics and Electromagnetic Applications},  publisher={Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo},  author={Rosa, Eduardo S. and Parahyba, Victor E. S. and Diniz, Júlio C. M. and Ribeiro, Vitor B. and Oliveira, Júlio C. R. F.},  year={2013},  month={Dec},  pages={707–718} }