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Type: Artigo de periódico
Title: Spectrally flat and broadband double-pumped fiber optical parametric amplifiers
Author: Boggio, JMC
Marconi, JD
Bickham, SR
Fragnito, HL
Abstract: We study theoretically and experimentally spectrally flat and broadband double-pumped fiber-optical parametric amplifiers (2P-FOPAs). Closed formulas are derived for the gain ripple in 2P-FOPAs as a function of the pump wavelength separation and power, and the fiber non-linearity and fourth order dispersion coefficients. The impact of longitudinal random variations of the zero dispersion wavelength (lambda(0)) on the gain flatness is investigated. Our theoretical findings are substantiated with experiments using conventional dispersion shifted fibers and highly nonlinear fibers (HNLFs). By using a HNLF having a low variation of lambda(0) we demonstrate high gain and flat spectrum (25 +/- 1.5 dB) over 115 nm. (C) 2007 Optical Society of America.
Country: EUA
Editor: Optical Soc Amer
Rights: aberto
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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