@article{nogueira_fonseca neto_silva_2021,  title={Generator Systems for Optical Subcarriers Based on Ring Resonator in Series and Parallel with Phase Modulation},  volume={20},  ISSN={2179-1074},  url={https://doi.org/10.1590/2179-10742021v20i3254755},  DOI={10.1590/2179-10742021v20i3254755},  number={3},  journal={Journal of Microwaves, Optoelectronics and Electromagnetic Applications},  publisher={Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo},  author={Nogueira, José Danilo da Silva and Fonseca Neto, João Pinto da and Silva, João Batista Rosa},  year={2021},  month={Sep},  pages={621–628} }