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Bhadra, S. K.
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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
Double-pass erbium-doped zirconia fiber amplifier for wide-band and flat-gain operations
Abstract
The double-pass erbium-doped zirconia fiber amplifier (EDZFA) is proposed and demonstrated to provide a wide-band amplification as well as flat-gain operation in both the C- and L-band regions using only a single-gain medium.The proposed amplifier utilizes an erbium-doped zirconia fiber (EDZF) with erbium ion concentration of 2800 ppm as a gain medium. The medium is fabricated in a ternary glass host, zirconia-yttria-aluminium codoped silica fiber through solution doping technique along with modified chemical vapor deposition (MCVD). Compared to a single-pass operation, the double-pass EDZFA shows a better gain performance. At input signal power of 0 dBm and the optimum EDZF length of 2m, a flat gain of around 16dB is achieved by the proposed double-pass amplifier with gain variation of approximately 2.5dB throughout the wavelength range from 1530 to 1590nm. However, the noise figure of the double-pass amplifier is slightly higher than that of the single-pass due to inefficient population inversion at the input part of the amplifier.