Geração de sinais de RF por mistura de harmonicas de portadoras opticas moduladas em amplificadores opticos a semicondutor / RF signal generation by mixing harmonics of modulated optical carriers in semiconductor optical amplifiers

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The gain-crossed properties of semiconductor optical amplifiers are experimentally investigated here. It was observed that optically feed-backed saturated amplifiers could achieve similar performance as that of cascaded amplifiers, offering up to 10 dB gain to two 8-nm-appart modulated optical carriers. Due to saturation the amplifier gain mechanism is altered leading to a mixing effect that causes the frequency components of the optical signals to be exchanged. For optical carriers modulated at 250 MHz and 400 MHz, this mixing effect produced, after photodetection, up and down-converted electronic components at 650 and 150 MHz, respectively

ASSUNTO(S)

microondas otica eletronica modulação (eletronica) eletronics optics microwaves modulation (electronics)

ACESSO AO ARTIGO

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