Silicon photonic integrated circuits as an enabling technology for passive optical network architectures

• Ano de defesa: 2024
• Autor(a) principal: Marciano, Pablo Rafael Neves
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por; eng
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Doutorado em Engenharia Elétrica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: All-optical; Orthogonal Frequency Division Multiplexing (OFDM); Optical Frequency Comb (OFC); Recirculating Frequency Shifting (RFS); NG-PON; PAM-4; Fotônica Integrada; Redes opticas passivas; Redes neurais opticas; Engenharia Elétrica
• Link de acesso: http://repositorio.ufes.br/handle/10/18362

This work explored different PIC solutions, and their applications for optical networks were evaluated. Also, optical network techniques were applied to a new hybrid PON architecture focused on demonstrating the main characteristic that future networks must develop. There, a novel hybrid PON architecture associated with PIC was proposed for future generations of telecommunication systems. For instance, the PIC can implement optically complex functions traditionally implemented in the digital domain, allow future PON to implement an all-optical orthogonal frequency division multiplexing, and recover the data without using digital-signal processing devices. Also, the chromatic dispersion precompensation concept on the optical domain is exploited in this work, as we experimentally demonstrate the optical pre-equalization of OFDM-based optical IMDD systems in 125 km of optical fiber links through a photonic integrated circuit. The experiments with the PIC used OFDM signals with 5 GHz and 10 GHz with optical precompensation and without the traditional one-tap equalizer for simple optical OFDM systems. The results show significant enhancements in system performance and an improvement in power consumption. The capability of reducing latency is assured by reducing signal duration, which is a gold requirement for 5G New-Radio, PONs, and other networks