Efeitos não lineares em fibras oticas de dispersão deslocada

AUTOR(ES)

Jose Manuel Chavez Boggio

DATA DE PUBLICAÇÃO

2001

RESUMO

We present a theoretical and experimental study of four-wave mixing interactions between one or two lasers and noise in dispersion-shifted fibers, near the zero dispersion wavelength. We develop a simple frequency domain model of noise propagation in the presence of one or two lasers. We obtain good agreement between numerical and the experimental results. We also compare our model with other models that describe laser-noise interactions. We observed and explain new effects: 1) the formation of a dip in the noise spectrum induced by a strong laser through four-wave mixing; 2) the broadband catastrophic noise amplification pumped by two strong lasers symmetrically located relative to the zero dispersion wavelength; 3) the formation of sidelobes of amplified noise around a laser that propagates in the normal dispersion region in the presence of a second laser propagating in the anomalous region; and 4) the formation of pairs of dips and peaks in the noise spectrum induced by two strong lasers. All theses effects are due to four-wave mixing processes phase matched up to third order dispersion

ASSUNTO(S)

processo estocastico comunicações oticas fibras oticas teoria do ruido aleatorio sistemas de comunicação por laser

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