| Summary: | This document presents the developed work, in the scope of the implementation of next generation passive optical networks (PON), options and feasibility assessment. With the development of the Fifth Generation of Mobile Networks (5G), new challenges arose for PON networks, namely: a cost competitive solution, with bit rates of 25 Gbps and 50 Gbps. Through time, the growth and increase of quality of service to the final consumer have been pushing the necessity of development of new solutions and technologies related to PON networks. Considering several aspects such as: increase of bit rates, cost minimization and coexistence with previous technologies, NG-PON2 (Next Generation Passive Optical Network 2) was created and developed. Therefore, this thesis focus on the study of proposed 25 Gbps implementations, simulating different technological approaches, for the transmitter, involving EML (Externally Modulated Laser) and DML (Directly Modulated Laser), and receivers, PIN (Positive Intrinsic Negative) and APD (Avalanche Photodiode). Thus, the limits and advantages of each solution were accessed. The modeling of real 25 Gbps receivers was made, with success. Additionally, a study of NG-PON2 was conducted and laboratory tests were done involving transceivers of this technology. Finally, a characterization of a SFP28 transceiver was made, this one with a characteristic bit rate of 25Gbps. This work, demonstrates the viability of the use of O-band wavelengths and DML transmitters with bit rate of 25 Gbps and SMF (Single Mode Fiber) reach of 40 km. Highlighting the importance of the biasing and modulation currents and ER (Extinction Ratio), in the performance optimization. Also the laboratory characterization of a SFP28 transceiver was done with success. Este documento apresenta o trabalho realizado, no âmbito da implementação de redes óticas passivas (PON) de próxima geração, opções tecnológicas e avaliação de viabilidade. Com o desenvolvimento da Quinta Geração de Redes Móveis (5G), surgiram novos desafios para as ...
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