Optical amplitude modulation extinction by a deep saturated ultra-long semiconductor optical amplifier

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)The recovery of an optical carrier with the deletion of its amplitude modulation is introduced using a deeply saturated ultra-long semiconductor optical amplifier (UL-SOA). The experimental results were achieved for input signal bit rates up to 12.5 Gbps with high extinction ratio (up to 13.9 dB). The influence of parameters such as UL-SOA bias current, optical bandwidth, signal input power, modulation depth and bit rate are analyzed including the carrier spectral broadening effects due to the self-phase modulation effect. (C) 2010 Optical Society of America18262729827305Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CEPOF - Research Center in PhotonicsFINEP (Financiadora de Estudos e Projetos)Fotonicom (Instituto Nacional de Ciencia e Tecnologia Optica para Comunicacoes Opticas)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq