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Bhadra, S. K.
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Topics
Publications (7/7 displayed)
- 2011Double-pass erbium-doped zirconia fiber amplifier for wide-band and flat-gain operationscitations
- 2010Performance comparison of Zr-based and Bi-based erbium-doped fiber amplifierscitations
- 2010Wideband EDFA based in erbium doped crystalline zirconia yttria alumino silicate fibercitations
- 2010Yb2O3-doped YAG nano-crystallites in silica-based core glass matrix of optical fiber preformcitations
- 2010Ytterbium-doped Y2O3 nanoparticle silica optical fibers for high power fiber lasers with suppressed photodarkeningcitations
- 2009All Fibre based Hydrogen Sensing using Palladium coated Long Period Gratings
- 2009Ytterbium doped nanostructured optical fibers for high power fiber lasers
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article
Performance comparison of Zr-based and Bi-based erbium-doped fiber amplifiers
Abstract
In this Letter, we present a comprehensive comparison of the performance of a zirconia-based erbium-doped fiber amplifier (Zr-EDFA) and a bismuth-based erbium-doped fiber amplifier (Bi-EDFA). The experimental results reveal that a Zr-EDFA can achieve comparable performance to the conventional Bi-EDFA for C-band and L-band operations. With a combination of both Zr and Al, we could achieve a high erbium-doping concentration of about 2800 ppm (parts per million) in the glass host without any phase separations of rare earths. The Zr-based erbium-doped fiber (Zr-EDF) was fabricated using in a ternary glass host, zirconia-yttria-aluminum codoped silica fiber through a solution-doping technique along with modified chemical vapor deposition. At a high input signal of 0 dBm, a flat gain at average value of 13 dB is obtained with a gain variation of less than 2 dB within the wavelength region of 1530-1575 nm and using 2 m of Zr-EDF and 120 mW pump power. The noise figures are less than 9.2 at this wavelength region. It was found that a Zr-EDFA can achieve even better flat-gain value and bandwidth as well as lower noise figure than the conventional Bi-EDFA.