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- W2006741012 abstract "The erbium-doped fiber amplifier (EDFA) operating at 1.5 micrometers wavelength and the praseodymium-doped fiber amplifier (PDFA) at 1.3 micrometers wavelength are promising components for optical fiber communications due to their high gain, high saturation powers, low noise and low crosstalk. In this paper, using a comprehensive model which takes into account the spectroscopic properties of the fiber amplifiers, we have analyzed the noise performance in EDFAs and PDFAs under different operating conditions. We found that the noise figures (NF) is strongly signal wavelength dependent due to lower population inversion in EDFAs for 1.48 micrometers pumping and due to ground state absorption (GSA) in PDFAs. Outside of the GSA wavelengths, the noise performance of the PDFA is comparable with that of EDFA pumped in 0.98 micrometers band. We have confirmed that the NF is independent of numerical aperture (NA) for both amplifiers. The improvement in noise performance due to the addition of an inline isolator and an optical fiber filter has also been studied." @default.
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- W2006741012 date "1993-03-23" @default.
- W2006741012 modified "2023-09-23" @default.
- W2006741012 title "Comparison of the noise performance in erbium- and praseodymium-doped fiber amplifiers" @default.
- W2006741012 doi "https://doi.org/10.1117/12.141130" @default.
- W2006741012 hasPublicationYear "1993" @default.
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