Wideband EDFA based in erbium doped crystalline zirconia yttria alumino silicate fiber

Paul, M.C., Harun, S.W., Huri, N.A.D., Hamzah, A., Das, S., Pal, M., Bhadra, S.K., Ahmad, H., Yoo, S., Kalita, M.P., Boyland, A.J. and Sahu, J.K. (2010) Wideband EDFA based in erbium doped crystalline zirconia yttria alumino silicate fiber. Journal of Lightwave Technology, 28 (20), 2919-2924. (doi:10.1109/JLT.2010.2070486).

Abstract

A wideband erbium-doped fiber amplifier (EDFA) is demonstrated using an Erbium-doped zirconia fiber as the gain medium. With a combination of both Zr and Al, we could achieve a high erbium doping concentration of 4320 ppm in the glass host without any phase separations of rare-earths. The Erbium doped fiber (EDF) is obtained from a fiber preform, which is fabricated in a ternary glass host, zirconia-yttria-aluminum codoped silica fiber using a MCVD process. Doping of Er₂O₃ into Zirconia yttria-aluminosilicate based glass is done through solution doping process. The maximum gain of 21.8 dB is obtained at 1560 nm with 2 m long of EDF and co-pumped with 1480 nm laser diode. At high input signal of -4 dBm, a flat-gain at average value of 8.6 dB is obtained with a gain variation of less than 4.4 dB within the wavelength region of 1535-1605 nm and using 3 m of EDF and 100mW pump power. The corresponding noise figure is maintained below 9.6 dB at this wavelength region.

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Contributors

Author: J.K. Sahu

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