Search Results - "Callegari, F.A."

Spurious four-wave mixing in two-pump fiber-optic parametric amplifiers by Callegari, F.A., Boggio, J.M.C., Fragnito, H.L.

“…We present an experimental study on four-wave mixing (FWM) between two signals within a two-pump fiber-optical parametric amplifier (2P-FOPA). We demonstrate…”
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Análise dos transientes de ondas de tensão em ambos os extremos de uma linha quarto de onda e analogia com o fenômeno de reflexão e transmissão de ondas eletromagnéticas by F.A. Callegari

“…Os valores estacionários da amplitude de uma onda de tensão em ambos os extremos de uma linha quarto de onda foram determinados através de uma análise de…”
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Influence of zero dispersion wavelength variations on cross-talk in single-pumped fiber optic parametric amplifiers by Chavez Boggio, J.M., Callegari, F.A., Marconi, J.D., Guimarães, A., Fragnito, H.L.

“…We show that variations of the zero dispersion wavelength (λ0) in single-pumped fiber optic parametric amplifiers (FOPAs), greatly enhances four-wave mixing…”
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Formalismo óptico matricial e aplicações by Callegari, F.A., Freschi, A.A.

“…O formalismo óptico matricial é desenvolvido a partir da aplicação da lei de Snell para descrever a refração de raios óticos numa superfície esférica. A…”
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Análise dos transientes de ondas de tensão em ambos os extremos de uma linha quarto de onda e analogia com o fenômeno de reflexão e transmissão de ondas eletromagnéticas by Callegari, F.A.

“…Os valores estacionários da amplitude de uma onda de tensão em ambos os extremos de uma linha quarto de onda foram determinados através de uma análise de…”
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Sign of the dominant charge carriers in photorefractive crystals determined by a phase-locked holographic technique by Freschi, A.A., Callegari, F.A., De Vicente, F.S., Gesualdi, M.R.R.

“…•The sign of photorefractive charge carriers is determined by phase-locked holography.•The method can be applied from highly photoconductive to highly…”
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Formalismo óptico matricial e aplicações by F.A. Callegari, A.A. Freschi

“…O formalismo óptico matricial é desenvolvido a partir da aplicação da lei de Snell para descrever a refração de raios óticos numa superfície esférica. A…”
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Amplification of 12×10Gb/s WDM signals with negligible FWM crosstalk in a double-pumped fiber optical parametric amplifier by Boggio, J.M. Chavez, Fagotto, E.A.M., Marhic, M.E., Callegari, F.A., Fragnito, H.L.

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Amplification of 12 × 10 Gb/s WDM signals with negligible FWM crosstalk in a double-pumped fiber optical parametric amplifier by Boggio, J.M. Chavez, Fagotto, E.A.M., Marhic, M.E., Callegari, F.A., Fragnito, H.L.

“…We report on the amplification of 12 × 10 Gb/s wavelength-division-multiplexed signals by a double-pumped fiber optic parametric amplifier (2P-FOPA). A gain of…”
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Q penalties due to pump phase modulation and pump RIN in fiber optic parametric amplifiers with non-uniform dispersion by Chavez Boggio, J.M., Guimarães, A., Callegari, F.A., Marconi, J.D., Fragnito, H.L.

“…We present an experimental and numerical investigation of the quality factor degradation (ΔQ) due to pump phase modulation and pump relative intensity noise…”
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Field-trial evaluation of the Q-factor penalty introduced by fiber four-wave mixing wavelength converters by Marconi, J.D., Callegari, F.A., Abbade, M.L.F., Fragnito, H.L.

“…The performance of tunable all-optical wavelength converters based on four-wave mixing in optical fibers is experimentally tested in a field-trial network. Two…”
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Experimental study on crosstalk in double-pumped fiber optic parametric amplifier by Callegari, F.A., Boggio, J.M.C., Marconi, J.D., Guimaraes, A., Fragnito, H.L.

“…The performance of five WDM modulated channels amplified with a double-pumped fiber optic parametric amplifier is experimentally analysed. We observe that…”
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Ternary Amplitude Optical Packets Generated by Parametric Amplification by Abbade, M.L.F., Callegari, F.A., Moschim, E., Durand, F.R., Barbosa, F.R.

“…We propose a new all-optical labelling technique that uses parametric amplification to generate optical packets. This approach considers that an on-off keyed…”
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Spurious four wave mixing and cross gain saturation crosstalk in parametric amplifiers using dispersion shifted fibers with large or small variations of /spl lambda//sub 0 by Callegari, F.A., Chavez Boggio, J.M., Marconi, J.D., Guimaraes, A., Said, J.C., Juriollo, A.A., Fragnito, H.L.

“…We experimentally analyze amplification performance of a two channel WDM system within a single-pumped fiber optic parametric amplifier. We show that…”
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Mixing of signals in two-pump fiber optic parametric amplifiers and wavelength converters by Callegari, F.A., Chavez Boggio, J.M., Fragnito, H.L.

“…We measure four wave mixing tones generated by two signals within two pump fiber optical parametric amplifiers. Intensities of tones grow with length of fiber…”
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Demonstration of 26 dB on-off gain of a two-pump fiber optical parametric amplifier by Chavez Boggio, J.M., Callegari, F.A., Tenenbaum, S., Fragnito, H.L., Rosolem, J.B., debarros, M.R.X.

“…We experimentally demonstrated, for the first time, to the best of our knowledge, a two-pump fiber optical parametric amplifier having /spl sim/26 dB on-off…”
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Q penalties due to pump phase modulation in FOPAs by Boggio, J.M.C., Callegari, F.A., Guimaraes, A., Marconi, J.D., Fragnito, H.L.

“…We investigate Q penalties in FOPAs arising from variations of the parametric gain originated by pump phase modulation. We show that these penalties are…”
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Mixing of signals in two-pump fiber optic parametric amplifiers by Callegari, F.A., Chavez Boggio, J.M., Fragnito, H.L.

“…We measure the parasitic four wave mixing tones generated by two signals that are amplified in two-pump fiber optical parametric amplifiers (2P-FOPAs). We…”
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Optically Generated Quaternary Packets: Transmission over the KyaTera Network by Abbade, M.L.F., Almeida, F.P., Branquinho, F.G.G., Fagotto, E.A.M., Braga, R.S., Callegari, F.A., Rocha, M.L., Rossi, S.M., Boggio, J.M.C., Fragnito, H.L.

“…We demonstrate that fibre four-wave mixing may optically multiplex a binary payload and a binary label into a single quaternary amplitude packet. We also…”
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Crosstalk mitigation in fiber optic parametric amplifier by Callegari, F.A., Chavez Boggio, J.M., Fragnito, H.L.

“…We analyze crosstalk in two-pump fiber optical parametric amplifiers (2P-FOPAs) with 13 WDM signal channels in two situations. In the first case, we simulate…”
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